John O'Neill, a decorated FBI agent who led the New York field office's counterterrorism division, resigned from the bureau in August 2001, just weeks before the September 11th attacks. O'Neill had spent years issuing dire warnings about Osama bin Laden and Al-Qaeda, but felt his concerns were not adequately addressed by his superiors and other government agencies.
O'Neill's resignation followed a pattern of clashes with his superiors over what he perceived as bureaucratic inertia and a failure to grasp the urgency of the terrorist threat. Despite his distinguished 31-year career, which began as a fingerprint clerk and saw him rise to special agent in charge of the national security division, O'Neill grew increasingly frustrated. Incidents such as misusing an FBI car, losing a bureau-issued PalmPilot, and briefly misplacing a briefcase with classified documents were used as pretexts for his departure, according to the notes. O'Neill viewed these as minor infractions amplified by an agency where he had made enemies as an outspoken maverick.
Following his departure from the FBI, O'Neill took a position as head of security for the World Trade Center. He had been in this role for only 19 days when the attacks occurred on September 11, 2001. While on the 34th floor of the North Tower, he left the building after the first plane struck to contact loved ones and assure them of his safety. He then reportedly re-entered the complex to assist in the evacuation efforts. O'Neill was last seen heading toward the South Tower before its collapse, which killed him at the age of 49.
Throughout his career, O'Neill was known for his distinctive style and confident, sometimes arrogant, demeanor. His personal life was complex; he was married, but involved with multiple women concurrently, none of whom were aware of the others until after his death. His longtime girlfriend, Anna DiBattista, described him as the love of her life but acknowledged his skill in concealing his other relationships.
O'Neill's persistent warnings about Al-Qaeda, dating back to public statements in 1997, highlighted his foresight. He meticulously built a private archive on bin Laden and repeatedly asserted that terrorist groups were already capable of striking within the U.S. His frustration with the slow pace of federal government response, particularly after the 1998 embassy bombings in Kenya and Tanzania and the USS Cole attack in 2000, fueled his confrontational approach.
His story has been the subject of numerous books and documentaries, including Lawrence Wright's Pulitzer Prize-winning "The Looming Tower," which was adapted into a television series. Despite his life being marked by warnings of the very catastrophe that claimed him and a complicated personal life, his legacy within the FBI is often framed around his dedication to counterterrorism and his actions on his final day.
The question of what might have been if his warnings had been heeded sooner continues to resonate, but it remains certain that the man who spent his career warning that the towers could fall was present when they did.