On the evening of July 14, 1881, Sheriff Pat Garrett sat in the dim bedroom of his acquaintance Pete Maxwell at Fort Sumner, New Mexico. Maxwell confirmed what Garrett had come to learn: the outlaw Billy the Kid was in town. As the two men spoke in the darkness, a figure appeared in the doorway. Maxwell identified him quietly, and two gunshots rang out.

The 21-year-old known as Billy the Kid fell dead. The man who died that night had spent barely two decades on earth, yet his brief life had already produced a legend that would outlast the frontier itself. Born William H. Bonney, he had become an orphan of circumstance, a fugitive, a killer, and ultimately the most notorious outlaw of the American West.

Billy’s origins offered little hint of the violence to come. He spent his childhood in Silver City, New Mexico, with his mother and stepfather, where he learned Spanish and moved easily among the local Mexican community, earning friendship and respect. His slight build and youthful face made him a target for bullies, but those who knew him described a reserved, kind-hearted young man, loyal to his friends and conspicuously brave. His world collapsed in 1874 when his mother died of tuberculosis.

His stepfather abandoned the family and moved to Arizona, leaving the 14-year-old to fend for himself in a boarding house. There he befriended a petty criminal named Sombrero Jack. When Jack robbed a Chinese laundry woman and hid the stolen goods in the boarding house, the proprietor discovered them and notified the sheriff. Jack escaped, but Billy was arrested and jailed for two days.

The brief imprisonment proved prophetic. Billy persuaded the sheriff to let him outside for fresh air, and the moment the lawman turned his back, the boy slipped into the fireplace, climbed the chimney, and fled across the prison roof. The Silver City Herald reported the escape, and Billy’s life as a fugitive began. He made his way to Arizona to find his stepfather, who refused to take him in.

Billy left with some clothing and firearms, never to see the man again. In Camp Grant, a blacksmith named Frank Cahill repeatedly harassed him. On August 18, 1877, at a cantina, Cahill’s humiliation went too far. In the struggle that followed, Billy freed an arm, drew his revolver, and fired.

The large blacksmith died before hitting the ground. With his first killing behind him, Billy fled back to New Mexico and joined a gang known as the Boys, led by Jesse Evans alongside John Kinney. They took assignments from a powerful syndicate in Lincoln County, a formidable operation controlling cattle, land, and supplies. Its leading figure was James Dolan, an Irish immigrant who eliminated rivals without hesitation.

Even the local sheriff, William Brady, answered to Dolan’s influence. That arrangement faced a serious challenge when John Tunstall, a wealthy Englishman, arrived in Lincoln County. He opened his own store and cattle business, directly cutting into Dolan’s profits. The rivalry deepened when Dolan ordered the Boys to steal Tunstall’s horses.

They were caught, and Billy landed in jail again. Tunstall visited him there. Despite being only six years older, the Englishman became the mentor Billy had never had. He offered the young man legitimate work, and Billy accepted.

For the first time since his mother’s death, he felt he belonged. Tunstall’s associates welcomed him, and he became a familiar and well-liked figure in the community. The bond ended violently. On February 18, 1878, Billy rode roughly 300 yards behind Tunstall during a trip through Lincoln County.

Two of the men had veered off to hunt wild turkeys, leaving the Englishman exposed. Billy’s former gang, the Boys, ambushed Tunstall and shot him dead. Grief turned to vengeance. Billy knew Sheriff Brady would side with the House, so he turned instead to Justice of the Peace Wilson, who issued arrest warrants for Tunstall’s murderers.

Wilson assigned Constable Martinez to execute them, with Billy and his companion Dick Brewer assisting. For the first time, Billy believed the law was on his side. It was not. When the group approached Dolan’s store to make arrests, Sheriff Brady intercepted them.

Martinez was released within hours, but Billy and Brewer were held in custody, missing Tunstall’s funeral. Once freed, they returned to Justice Wilson, who formally appointed Brewer to carry out the warrants. Brewer gathered a group of Tunstall’s most devoted supporters, naturally including Billy. They called themselves the Regulators and launched a relentless campaign against everyone responsible for Tunstall’s death.

They showed no mercy, convinced that the corrupt courts would never deliver justice. They took it for themselves. The campaign came to a bloody head in an ambush of Sheriff Brady and his deputy. Both lawmen were killed, but the victory carried a heavy cost.

Billy took a bullet in the side, and the Regulators lost their leader, Dick Brewer. The violence in Lincoln County drew federal attention. Washington appointed a new territorial governor, Lew Wallace, who declared the Regulators outlaws. Billy was formally accused of murdering Sheriff Brady, transforming from vigilante into wanted criminal.

The Lincoln County War reached its climax when Billy and his remaining men barricaded themselves in a home adjacent to Tunstall’s store. Dolan’s forces, reinforced by soldiers from Fort Stanton, surrounded the building. In the crisis, Billy emerged as the natural leader and devised an escape. As night fell, the group burst from different exits and scattered into the darkness.

Billy and several Regulators got away. With a bounty on his head, Billy fled with his companions to Fort Sumner, a former military post now inhabited by Mexican settlers. He felt at ease there, enjoying the dances and the company of local women. But the Regulators gradually dissolved as some men grew tired of the outlaw life.

Governor Wallace had offered amnesty for those involved in the Lincoln County War, but Billy was excluded because of his part in Brady’s death. With no pardon forthcoming, he tried another path: reconciliation with his enemies. He returned to Lincoln County to negotiate with James Dolan and the House. The talks produced a fragile truce, celebrated with drinks.

The peace did not hold. The celebration turned violent when the group encountered Houston Chapman, a lawyer investigating the House’s activities. Sensing trouble, Billy tried to leave but was blocked by Dolan’s men. In the confrontation, Chapman was shot dead.

Billy escaped town at the first opportunity. The enraged governor struck a deal with him: full immunity in exchange for testimony against Dolan’s men. Billy held up his end, providing incriminating testimony in court that enraged his enemies. But after the trial, Wallace reneged, returning to Santa Fe to write his novel Ben-Hur instead of granting the promised pardon.

Betrayed by both the law and his former enemies, Billy walked back into the only life he knew. He formed a new gang and resumed his outlaw ways. His chief pursuer was Pat Garrett, a tall, former buffalo hunter and cowboy who became sheriff of Lincoln County. Garrett cornered Billy’s gang at Stinking Springs, surrounding their hideout until they surrendered.

Billy was convicted and imprisoned in Lincoln, awaiting execution. No cell could hold him. While Garrett was away, Billy shot two deputies and escaped. Then, remarkably, he lingered in town, chatting with locals and enjoying the festivities.

One man nearly intervened but was restrained by his wife, a restraint that likely saved his life. After a night of revelry, Billy calmly requisitioned a horse and rode away. Garrett contained his fury and began planning. He knew Billy would go into hiding.

He also knew Billy maintained a close connection with Pete Maxwell at Fort Sumner. Garrett began receiving word of Billy’s whereabouts and set out. On the night of July 14, Garrett and his deputy entered Fort Sumner and came to Pete Maxwell’s house. Garrett roused Maxwell and sat on the edge of the bed as they spoke in the dark.

Maxwell confirmed Billy was in town. At that moment, the outlaw appeared in the doorway. Maxwell identified him, and Garrett fired. The shooting left doubt in its wake.

Garrett’s own deputies later questioned whether he had actually killed Billy, given the poor visibility. That doubt only grew in 1948, when an elderly man named Brushy Bill Roberts came forward, claiming to be Billy the Kid himself. He sought the pardon that Governor Wallace had promised those decades before. Roberts demonstrated his ability to escape from handcuffs and displayed 26 scars from gunshot and knife wounds.

Several of Billy’s former associates gave sworn statements affirming his identity. The authorities dismissed the claim as absurd. Within a month of the denial, Brushy Bill Roberts died, and the promised pardon remained forever out of reach.

Whether the man Pat Garrett killed that night in 1881 was truly Billy the Kid, or whether the outlaw had somehow slipped into legend, remains a question that the frontier never fully answered.