On April 6, 2003, David Bloom, one of NBC News’ most visible correspondents, was found unresponsive in the back of the specially equipped truck that had carried him alongside the U. S. Army’s 3rd Infantry Division as it raced toward Baghdad. He was thirty-nine years old.

Bloom had died of a pulmonary embolism, a blood clot that had formed in his leg and traveled to his lung, a consequence of days spent cramped inside an armored vehicle during the opening push of Operation Iraqi Freedom. Bloom’s death stunned the newsroom he had called home for a decade. He had been a ubiquitous presence on American television since the terrorist attacks of September 11, 2001, reporting from the White House, from the hunt for the Washington-area snipers, and from conflict zones abroad. But it was his embedded reporting from Iraq that made him a household name in the spring of 2003.

David Jerome Bloom was born in Edina, Minnesota, on May 22, 1963. He grew up playing ice hockey, competed as a state champion debater in high school, and studied political science at Pitzer College in Claremont, California, from 1981 to 1983. His path into journalism began in local television, first at WKBT in La Crosse, Wisconsin, where he covered city government and community stories, then at KWCH in Wichita, Kansas, where he worked as a general assignment reporter from 1988 to 1989. In 1989, Bloom joined NBC’s Miami affiliate, WTVJ.

He was still there in 1991 when Hurricane Andrew tore through South Florida, and his coverage earned him both a Peabody Award and an Edward R. Murrow Award. Those honors helped move him to the national stage. In 1993, he became a correspondent for NBC News in Chicago, and two years later he shifted to Los Angeles.

By 1997, he had risen to the position of White House correspondent, covering the final years of Bill Clinton’s presidency and the contested election of 2000. That same year, NBC made him co-anchor of Weekend Today alongside Soledad O’Brien. Bloom covered the major stories of his era: presidential campaigns, the wars in the Balkans, the September 11 attacks, and the Washington-area sniper shootings that paralyzed the capital region in October 2002. He was known less for a single defining story than for his relentlessness, his calm under pressure, and his skill at explaining complex developments in plain language.

Those qualities made him a natural choice for one of the most dangerous assignments of the war. When the United States invaded Iraq in March 2003, the Pentagon embedded hundreds of journalists with military units. Bloom was assigned to the 3rd Infantry Division, the main armored force advancing from Kuwait through the desert toward Baghdad. To do his job under combat conditions, his team built a custom vehicle that became known as the Bloom Mobile: a Ford F-250 four-wheel-drive flatbed truck loaded with a satellite dish and live television transmission equipment.

The setup allowed Bloom to broadcast live while the column moved, often from the truck’s open bed as it rolled across open country. The images he filed, shaking and dust-covered, gave American viewers an unprecedented, real-time sense of the advance. But the conditions that made the reporting so vivid also took a physical toll. Troops and embedded reporters alike spent long stretches inside cramped vehicles, sometimes for days at a time, with little room to move.

Bloom mentioned on air the discomforts of the mission: the cramped quarters, the brutal daytime heat, the lack of sleep. It was an offhand observation at the time, a journalist acknowledging the hardship of war coverage. In hindsight, those comments hinted at a lurking medical danger. Bloom developed a deep vein thrombosis, a blood clot in one of his legs.

On April 6, 2003, part of the clot broke free and traveled through his bloodstream to an artery in his lungs, causing a fatal pulmonary embolism. The clot had almost certainly been caused by the prolonged immobility of riding for days inside an armored vehicle. The condition could have been prevented with routine measures like movement, hydration, or blood-thinning medication, and its fatal outcome was, by the accounts of medical experts, tragically unnecessary. Bloom died just days before the fall of Baghdad, as the campaign he had been covering was reaching its climax.

He was survived by his wife, Melanie, and their three daughters. He was buried in Pound Ridge, Westchester County, New York, in the cemetery where his family laid him to rest. His death prompted a wave of reflection within journalism about the dangers embedded reporters face and about the need for preventive medical care in war zones. It also underscored a quieter risk: the threat to a reporter’s life from the conditions of the assignment itself, rather than from enemy fire.

In 2006, the National Association of Radio and Television Broadcasters established the David Bloom Award to honor excellence in enterprise reporting, ensuring that his name would remain associated with the kind of aggressive, resourceful journalism he had practiced throughout his career. The award is given to reporters who, in the spirit of Bloom’s work, dig beyond the surface of a story and deliver reporting that informs the public in meaningful ways. David Bloom did not die in combat, and he did not die from a bullet or a bomb. He died because he did his job under terrible physical conditions, staying with the troops as they drove toward the Iraqi capital so that millions of viewers could watch history unfold in real time.

The war he covered continued after his death, but the coverage he helped pioneer, live, from inside an advancing armored column, became a lasting model for battlefield journalism.