The 911 call came in just after nine in the evening on July 18, 1998. Daniel Carlson told the dispatcher he had just returned from work and found his wife dead. She was lying on the couch, surrounded by blood, her body already cold. The children, three-year-old twins, were safe at their grandparents’ house.
When deputies arrived, they confirmed what Daniel already knew: Lisa Carlson was beyond help. She had two gunshot wounds to the head and another to her chest. Three spent . 22 caliber shell casings lay on the floor near the couch.
A blanket partially covered her body. When officers lifted it, they found something they had not expected at all. Her pants and underwear had been pulled down, and she was clutching a remote control for a sex toy that lay beside her. An adult video was playing on the living room television, though it had been paused.
Lisa Carlson was born on June 28, 1971, in San Diego, California. She was the oldest of two daughters, and because her father served in the army, the family moved constantly, living in different cities and states, even spending time in Panama. Lisa was energetic and strong-willed, someone who got along easily with others but did not hesitate to defend herself or speak her mind when something bothered her. When Lisa turned seventeen, her family finally settled in one place, moving to Tacoma, Washington.
She finished high school and trained as a nursing assistant. She wanted work that genuinely helped people, so she chose to care for those who could not care for themselves. She got a job at a rehabilitation center for people with disabilities, and there she met a nurse named Daniel. They began dating and their relationship moved quickly.
In less than a year they married, and not long after, Lisa gave birth to twins, Nicky and Chris. She was overjoyed to be a mother, but she and Daniel soon faced a problem. Paying a babysitter for two infants would have consumed nearly her entire salary, so Lisa decided to quit her job and stay home with them. The trouble was that Daniel’s salary alone could not cover their basic expenses.
Eventually his parents offered the young family a place on their large rural property. They set up a trailer there for Lisa, Daniel, and the children, which meant the couple no longer had to pay rent, easing a great deal of financial pressure. Daniel’s parents also worked at the same rehabilitation center, so he could ride to work with them and save more money. By the summer of 1998, Lisa still lived there with her husband and children.
When Daniel spoke to the police that night, he gave them a reason for his calm demeanor. He explained that although he and Lisa were still legally married, their relationship had effectively ended long before. According to Daniel, they had decided to separate about a year and a half earlier, but their financial situation made it impossible for either of them to move out and start over. After Lisa had the twins and stopped working, the couple relied more and more on credit cards to cover basic expenses.
Daniel’s salary could not keep up with the debt. Eventually they filed for bankruptcy, a process that dragged on for months, leaving Lisa with no realistic way to move out and live on her own. At the same time, she could not return to work while caring for two young children, so she had no choice but to continue living with Daniel. About six months before her death, they signed a separation agreement they planned to use later as the basis for a divorce.
They slept in separate rooms and, practically speaking, lived as roommates rather than spouses. Daniel also told the police that Lisa had been dating another man for a long time, a man named Shawn. Lisa often spent the night at Shawn’s house once Daniel came home from work and could care for the boys, then returned before Daniel had to leave for his next shift. In fact, Daniel said Lisa had spent the night before her murder at Shawn’s house and came back to the trailer around 1:30 in the afternoon while he was getting ready for work.
The police went straight to Shawn. His reaction to the news of Lisa’s death could not have been more different from Daniel’s. He became visibly tense, agitated, and chain-smoked cigarettes as he spoke with investigators. Shawn admitted that he and Lisa had been in a relationship for a long time.
He explained that he had been friends with Daniel since childhood. When Daniel first married Lisa, his relationship with her was completely innocent. But after Lisa and Daniel decided to separate in practice, Shawn and Lisa began seeing each other. Over the following months, they started making plans for a future together.
Lisa decided she wanted to move with the boys and Shawn to Arizona, where his parents lived. She hoped to start over and build a new life there. According to Shawn, she had some very serious reasons for wanting to leave. He told investigators that Lisa and Daniel’s marriage had grown increasingly volatile.
They were already in financial distress, but Daniel made things worse. At some point, Lisa discovered he had been hiding a large number of lottery tickets and credit cards from her. She later learned that Daniel had secretly accumulated additional debt, making an already difficult financial situation even worse. At the same time, the couple argued frequently, and Daniel’s behavior became increasingly aggressive.
Lisa told people he yelled at her, threw things in her direction, and even became physically violent. During one incident in particular, Daniel grabbed Lisa by the neck, and she became afraid he would strangle her. Afterward, Lisa turned on a tape recorder and brought up what had happened, hoping to get Daniel to admit it on tape. When she told him she feared for her life after he tried to choke her, Daniel replied that he had not meant to hurt her, that he had not squeezed her neck that hard.
Lisa later gave the tape to Shawn and asked him to hand it over to the police if anything ever happened to her. Shawn also told investigators another important detail. According to him, Lisa had made the final decision to leave with him and the boys on the very day she was killed. The plan was to wait until Daniel went to work, take the children to Shawn’s house, then leave with him for Arizona, where his parents lived.
Before leaving the state, they planned to stop at Lisa’s parents’ house so she could say goodbye. All of this pointed strongly toward Daniel, but Shawn clarified an essential point. Lisa had kept the plan completely secret from her husband and did not intend to tell him she was leaving. According to Shawn, she was afraid Daniel would hurt her if he found out.
As far as he knew, Daniel should not have known anything about it. The investigators were not ready to rule out Shawn either, and they asked where he had been after Lisa left his house. Shawn said he stayed home and spent time on internet forums. Since this was 1998 and the investigators themselves were not familiar with how to verify that kind of activity, they passed the information to specialists who could check his story.
The police then spoke with Lisa’s family and friends, and they heard many similar concerns. Lisa talked repeatedly about the problems in her marriage, and over time she grew increasingly worried about her personal safety. Her parents urged her to move out and get away from Daniel as soon as possible, but Lisa told them she could not do that until the bankruptcy process was complete. When investigators looked into it, they learned the bankruptcy was expected to conclude within days.
At that point, they began seriously considering whether Daniel had killed Lisa after somehow discovering she planned to leave him and take the children with her. There was one major problem with that theory. Daniel had been at work for most of the day. The medical examination could not determine Lisa’s time of death precisely; it could only narrow it to sometime in the afternoon of that day.
Lisa left Shawn’s house around 12:30, and because the drive to the trailer took just under an hour, she should have arrived home around 1:30. Meanwhile, Daniel’s shift was supposed to start at 12:15, which initially seemed to leave him very little time to kill Lisa and still make it to work. But investigators soon learned a suspicious detail. The work supervisor said Daniel called about 15 minutes before his shift and told him he would be a little late.
He did not actually arrive until around 3:00 in the afternoon, meaning that, at least in theory, he had enough time to commit the crime. However, the investigators quickly ran into several problems with that theory. While they were gathering information about Lisa’s life, crime scene experts were examining the trailer. What they found raised significant questions.
First, they doubted that burglary was the real motive for the crime. Despite the chaos inside the trailer, nothing of value appeared to be missing. This led investigators to believe the alleged burglary may have been staged. They also analyzed the blood stains on the wall and on Lisa’s body and determined she was probably sitting upright when she was hit by the first shot to her head.
According to the coroner, that first shot did not kill her immediately, but it likely left her paralyzed. Investigators also noticed an unusually large amount of blood in Lisa’s hair, which supported the idea that after the first shot she remained sitting upright for some time, allowing blood to pool there. Then, based on the smeared blood stains found on the couch, investigators concluded that someone had pulled Lisa down and stretched her out. As her blood-soaked hair was dragged across the back of the couch, it left a visible trail.
Crime scene photos also showed an unusual bunching in Lisa’s sweater, leading experts to believe the person who moved her body pulled her down by her clothing. All of this made one thing clear. Lisa could not have removed her own pants and underwear. By that point she was already paralyzed by the first shot.
So investigators believed the killer was the one who removed them. The sex toy also appeared to have been placed beside her afterward, though why remained unclear. The blood on the toy supported this theory as well. Investigators determined it had transferred through direct contact rather than through blood spatter, meaning the killer did not touch it until after laying Lisa on her back, when their hands were already bloody.
At some point during all of this, Lisa was hit by two additional shots, and only then did the killer cover her body with a blanket. That detail seemed especially strange. Whoever did this had clearly gone to great lengths to create the impression that Lisa had been shot while watching an adult video, arranging the scene in a deliberate and deeply unsettling way. Yet after arranging everything, they covered her with a blanket and hid much of the scene from view.
The video itself raised another question. Even though the television was still on, the film was paused. If Lisa had actually been watching it when she was attacked, the tape would have continued playing to the end, unless the killer had taken the remote and deliberately paused it. By this point, investigators had no doubt they were looking at a meticulously staged crime scene.
But that only complicated the theory against Daniel. Based on everything investigators had reconstructed, the killer would have needed time not just to shoot Lisa, but also to move her body, arrange the scene, search the trailer to make it look like a burglary, then clean themselves and change clothes because they would certainly have been covered in blood. Daniel’s drive to work took about thirty minutes, leaving him roughly an hour to commit the crime before he needed to leave. Technically, it was possible.
But investigators began to wonder whether he could realistically have done all of it in that short time. Forensics soon found a stronger reason to doubt his involvement. While examining Lisa’s belongings, they turned to her computer and discovered something unexpected. Someone had turned it on at 3:40 in the afternoon, long after Daniel had started his shift.
That person then tried to open an internet browser, but there was a problem. Just one day before the crime, Lisa had taken her computer to Shawn’s house so he could update some software. For some reason, Shawn had deleted the browser Lisa normally used to access her email. The computer log showed that someone tried to download and reinstall the browser but failed.
At 4:18 in the afternoon, the computer was shut off. This meant Daniel could not have been the one who used it. By then, dozens of people had already seen him at work, about a thirty-minute drive from the trailer. Another interesting discovery came from the answering machine inside Lisa’s trailer.
It contained three messages from Daniel’s mother, Carol. As we remember, during the early hours of the investigation, the police were told that the twins had unexpectedly arrived at her house around 5:45 in the evening. They said their mother was sleeping, which seemed immediately odd to the grandmother. The boys were only three years old and had never walked there alone before.
The trailer was about 130 yards from the house with a stretch of woods between the properties, so the walk was not easy at all for two small children. Carol had called the trailer several times, trying to wake Lisa, but no one answered. She eventually left a few messages telling her to wake up and come get the boys. But investigators noticed something very strange.
When they spoke with Lisa’s mother, she said she had also tried to call her daughter around 6:20 in the evening because Lisa had not shown up for a meeting they had planned before she left the state. Lisa did not answer, so her mother left a message on the answering machine. The problem was that no such message was there. Investigators sent the answering machine tape to experts, who found signs it had been tampered with.
It appeared someone had removed the tape, rewound it to the beginning of the message left by Lisa’s mother, and then used Carol’s next call to record over it. This discovery raised an entirely new set of questions and prompted investigators to take a closer look at Daniel’s family. To their surprise, they learned that just a few months before her death, Lisa had obtained a restraining order against Darrell, Daniel’s father. The police began asking Lisa’s family and friends about her relationship with Daniel’s parents, and what they heard painted a disturbing picture.
According to Shawn, Daniel’s mother had disliked Lisa from the moment they met. Carol did not think she was good enough for her son, but Daniel kept seeing her anyway. Shawn also said Daniel had always been heavily dependent on his mother and that their relationship was unusually close. Even after he became an adult, Carol still had a great deal of control over him.
The fact that she could not convince him to end his relationship with Lisa seemed to bother her deeply. Things got worse after Lisa and Daniel had the twins. Carol began constantly criticizing Lisa, saying she was raising the boys wrong, did not cook or clean well enough, and generally was not doing a good job as a wife or mother. Moreover, Carol acted as if she did not simply have an equal say in the children’s lives, but the right to make decisions about them regardless of what Lisa wanted.
She would sometimes take the boys to her house without asking, drive them somewhere without telling Lisa, and generally act as if they were her children rather than her grandchildren. When Carol talked about the twins to other people, she even referred to them as “my children. ”
Once Lisa and Daniel moved into the trailer, her mother-in-law’s behavior became unbearable. They already saw each other almost every day at work because Daniel’s parents worked at the same rehab center, but now Carol lived only a hundred yards away.
She constantly came to the trailer and told Lisa how to raise the boys, run the household, and basically live her life. Sometimes she went through Lisa’s belongings or entered the trailer when no one was home and messed with its contents. Lisa tried to set boundaries, but Carol simply ignored them. Daniel did not see his mother’s behavior as a problem either and usually took her side.
According to Shawn, Daniel’s refusal to defend Lisa was one of the main reasons their marriage gradually fell apart. When Carol learned the couple had agreed to divorce, she flew into a rage and blamed Lisa for what was happening. Later, once Lisa started seeing Shawn, Carol accused her of betraying Daniel and destroying their family. At one point, Carol and her husband burst into the trailer while Lisa and Shawn were there together.
They seemed to hope to catch them in a compromising position, but Lisa and Shawn were only sitting and talking. Even so, Carol began insulting Lisa while Darrell grabbed her by the neck and threw her to the floor before turning toward Shawn. Afterward, the couple called the police and Darrell was arrested. Lisa obtained a restraining order against him after that, but she chose not to press charges because she did not want to make the family’s already bad situation worse.
From that moment on, Lisa was literally counting the days until she could finally leave. Meanwhile, she kept her plan secret because she was afraid of Daniel’s family and what they might do if they learned she intended to take the boys and move to another state. After hearing all of this, investigators began to wonder whether Lisa’s mother-in-law had been involved in the crime in some way. They had spoken with Carol during the early hours of the investigation, and she said at the time that she had been home most of the day but had not noticed anything unusual because a small stretch of woods separated her house from the trailer.
But when the police asked why she had called Lisa several times asking her to come get the boys yet had not gone to the trailer herself, Carol gave more than one explanation. First, she said she assumed Lisa was sleeping and had no reason to think anything was wrong. Then she told one officer she did not go because of the restraining order Lisa had obtained. The problem was that the order applied to Carol’s husband, not to Carol herself.
Another suspicious detail emerged when investigators asked Daniel and his parents whether they owned any firearms. Daniel told them that less than a year earlier, he and his mother had purchased a . 22 caliber semi-automatic pistol, the same caliber as the weapon used to kill Lisa. But Daniel insisted he no longer owned the gun and that he had traded it for ammunition at an earlier time.
His parents also owned a rifle, but it was broken and did not match the murder weapon. Daniel mentioned that he had previously kept the pistol at his parents’ house, which gave investigators enough reason to obtain a search warrant for the property. Inside, they found . 22 caliber ammunition, but testing showed it did not match the rounds used to kill Lisa, and the pistol itself was nowhere to be found.
During the search, however, the police came across something else that caught their attention. There were several notebooks filled with detailed entries about Lisa and nearly every aspect of her daily life. Someone had been meticulously keeping notes by hand about where she went, who came to visit her, when she spent time with Shawn, how she cared for the twins, the condition of the trailer, whether she cooked or cleaned, and anything else that could be used to criticize her. It seemed Daniel’s family may have been gathering information to use during the divorce, hoping to portray Lisa as an unfit mother and help Daniel gain custody of the twins.
Then investigators made another unexpected discovery. The entries in the notebooks were written in at least four different handwriting samples. When experts analyzed them, they determined the notes had been written not just by Daniel and his parents, but also by his sister. In other words, nearly the entire family had been monitoring Lisa’s every move, documenting anything they thought could be used against her later.
None of this proved any of them had been involved in the crime, but near the end of one notebook, investigators found a particularly disturbing entry. Carol appeared to have calculated how long Daniel might spend in prison if he were arrested for murder. The note was written after Lisa’s death, though investigators could not determine the exact timing. There was an additional detail that caught their attention.
Daniel’s parents had an answering machine in their house with a tape rewind function, leading investigators to wonder whether the tape from Lisa’s trailer had been rewound on that device. Still, none of this was considered real evidence, even if it was circumstantial, and investigators realized it was not enough to make an arrest. Even so, they began to suspect that Daniel’s family may have been directly involved in Lisa’s murder. One possibility was that Daniel shot her before going to work while his mother stayed in the trailer to stage the burglary and arrange Lisa’s body as part of the cover-up.
Another theory suggested Carol may have done everything herself, and it remained unclear whether Daniel knew anything about it. When it came to motive, investigators had a much clearer picture. By this point, they had little doubt that Daniel’s family hated Lisa and did not want her to take the twins. Multiple witnesses also told the police that Carol treated the boys almost as her own children and saw Lisa as the person standing between her and them.
Investigators also looked into whether any of Daniel’s other relatives had been directly involved, but they were able to confirm that his father and sister were elsewhere at the time of the crime, so neither was considered a possible participant in the murder itself. Over the next few days, investigators spoke with a wider circle of people who knew Daniel’s family, and those conversations produced even more suspicious details. One of Carol’s co-workers said Carol had complained about Lisa in front of her many times, repeating that she would never allow Lisa to take the children from her. But perhaps the strangest account came from Carol’s own sister.
She told the police that after the murder, Carol shared a completely different version of what happened when the twins arrived at her house. As we remember, Carol initially told investigators the boys simply came and said their mother was sleeping. But according to her sister, Carol later claimed the children actually said they left the trailer because they were trying to escape from a bad man. That account seemed extremely hard to believe, because if the boys had really said something like that, Carol’s behavior made no sense at all.
It would mean she ignored what two frightened children told her for hours, never called the police, and stayed quietly at home just a hundred yards from the trailer without showing any concern about what might be happening there. Still, Carol denied all of these claims when the police questioned her further. Daniel also continued to insist he had nothing to do with Lisa’s murder, despite admitting he hated her and blamed her for the breakdown of their marriage. Over the following few weeks, investigators kept searching for anything that might move the case forward.
Eventually, they found one potentially important piece of evidence. Do you remember how Daniel asked the police during the early hours of the investigation to get his clothes out of the washing machine? The officers refused and instead collected the clothing as potential evidence. When experts examined it, they found traces of blood that appeared to have been washed.
But the samples were far too small to undergo DNA testing. And so, once again, investigators had something suspicious but nothing that brought them closer to making an arrest. Over the following months, the case made little progress. The twins stayed with their father and his family, and eventually the investigation went cold.
Several years passed, and during that time Daniel showed almost no interest in the case’s progress. The only exception was when he visited the coroner’s office and asked whether Lisa’s death certificate could be changed so that the estimated time of death would show he had already been at work when she was killed. About three years after Lisa’s death, in July 2001, investigators met with prosecutors to review the entire case once more. Again, they came away believing that someone from Daniel’s family was definitely involved, but after all that time, they still had no direct evidence linking Daniel or Carol to the murder.
Even so, investigators were determined to solve this cold case. During that meeting, they decided to move forward and see whether they could win convictions based on circumstantial evidence. On July 20, the police went to the rehab center where Carol worked and Daniel also worked, and both were taken into custody. The prosecutors decided not to build their case around a specific theory of who pulled the trigger and who staged the scene inside the trailer.
They realized there was simply no way to prove those details without stronger evidence. So instead, both Daniel and Carol were charged with first-degree murder. They both continued to deny any involvement after their arrest, and both sides began preparing for trial. Daniel and Carol remained behind bars for a year and a half, and the trial finally began in February 2003, nearly five years after Lisa’s murder.
The prosecution argued that Daniel and his mother had planned in advance to get rid of Lisa so she could not take the twins away from them. According to the prosecution, Daniel waited for Lisa to return from Shawn’s house that day, and shortly after she arrived, either he or Carol shot her while she sat on the couch. They believed the murder weapon was the same . 22 caliber pistol Daniel had previously owned, and they claimed he had traded it for ammunition long before Lisa’s death, though there was no evidence to support that theory.
Daniel then left for work to establish an alibi while Carol stayed behind and began arranging the trailer to make the killing look like a burglary. The prosecution also focused on the sex toy and the adult video playing in front of Lisa. From their perspective, Carol had arranged that part of the scene as an additional way to humiliate a woman she deeply hated. They also believed Carol had tried to access Lisa’s email from her computer, probably so she could send a message from Lisa’s account to create the impression Lisa was still alive after Daniel arrived at work.
What Carol did not know was that Shawn had removed Lisa’s usual browser from the computer just one day earlier, so that part of the plan failed. Afterward, the prosecution believed Carol began calling Lisa’s phone and leaving messages telling her to wake up and come get the boys, all to make it seem as though she had no idea Lisa was already dead. But then something happened that complicated the plan. Lisa’s mother called the trailer and left her own message on the answering machine.
According to the prosecution, that message created a serious problem because it could conflict with the timeline Carol intended to present to the police. The answering machine itself did not record the time of each message, but Lisa’s mother clearly remembered when she called. Since her message was recorded after Carol’s first message, it established the order of calls and could help investigators reconstruct the timeline. The prosecution argued this was why Carol removed the tape, took it to her house, rewound it, returned it to Lisa’s answering machine, and used her next call to record over Lisa’s mother’s message.
The defense challenged nearly every piece of circumstantial evidence the prosecution presented and repeatedly emphasized one key point. After three years of investigation, the police still had not found a single conclusive piece of evidence proving that Daniel or Carol had killed Lisa. The trial was difficult, and the closing arguments lasted nearly two months. In the end, however, the jury found both Daniel and Carol guilty, and each was sentenced to 36 years and 8 months in prison.
The sentence was longer than what would normally have been expected under the charges against them, but the judge imposed an additional penalty because of what had been done to Lisa’s body after the killing, considering it an aggravating factor. But the story was not over. In the following years, their lawyers continued to appeal the convictions, claiming some of the circumstantial evidence had been obtained illegally. Their main focus was on the notebooks found inside Carol’s house, where she and other relatives had documented nearly all of Lisa’s movements.
According to the defense, the search warrant allowed the police to look for a weapon and ammunition, not for private written records. Three years later, an appeals court overturned both convictions and ordered a retrial. That left prosecutors with a difficult choice: retry Daniel and Carol without a significant portion of the evidence from the first trial, or offer them plea deals. After about a year, they chose the latter.
Carol was offered reduced charges: three counts of second-degree assault and one count related to the mistreatment of Lisa’s remains. She accepted the deal and was sentenced to nine years in prison. Then came Daniel’s turn. Prosecutors offered him a deal on a second-degree murder charge, and he accepted.
Daniel pleaded guilty and received a sentence of 23 years. But that was not quite the end of the story. Both of them received credit for the time they had already spent behind bars. Because of that, Carol was released less than a year after accepting her plea deal and has remained free ever since.
Daniel was released in 2022, about 14 years after his guilty plea. As for the twins, they lived with their father and grandmother until Daniel and Carol were arrested. After that, the boys spent some time under the care of Daniel’s father, the same man who had attacked Lisa just months before her murder. Meanwhile, Lisa’s parents were only allowed limited visits.
Later in the twins’ childhood, custody was transferred to Daniel’s sister, who raised them until they reached adulthood. They are now 31 years old, but neither has spoken publicly about the case, and there is no information about whether they still have any relationship with Carol or Daniel. In that sense, the case eventually reached its end. But the outcome left Lisa’s family with a great deal of bitterness.
Not only did custody of the twins remain within Daniel’s family, but they were also angry that Carol ultimately spent only about seven years behind bars. Both Lisa’s relatives and the investigators who worked on the case believe Carol was the main driving force behind the murder, even if she was not the one who actually pulled the trigger.
