Nidal Malik Hasan (born September 8, 1970) is an American mass murderer and physician, who previously served as a United States Army major and perpetrated the 2009 Fort Hood shooting, in which he murdered 13 people and injured 32 others.
Hasan, an Army Medical Corps psychiatrist, admitted to the shootings at his court-martial in August 2013. He said he wanted to stop U.S. soldiers from going to Afghanistan to kill Muslims. During the six years Hasan was a medical intern and resident at the Walter Reed Army Medical Center, concerns were raised about his job performance and behavior, specifically comments described by colleagues as "anti-American." Hasan was described as socially isolated, stressed by his work with soldiers, and upset about their accounts of warfare. Two days before the shooting, less than a month before he was due to deploy to Afghanistan, Hasan gave away many of his belongings to a neighbor.
Prior to the shooting, an investigation conducted by the Federal Bureau of Investigation (FBI) concluded Hasan's email correspondence with the late Imam Anwar al-Awlaki was related to his authorized professional research, and he was not a threat. The FBI, Department of Defense (DoD), and United States Senate all conducted investigations after the shootings. The Senate released a report describing the shooting as "the worst terrorist attack on U.S. soil since September 11, 2001." Controversially, the Army decided not to charge Hasan with terrorism. He represented himself in trial and admitted responsibility for the shooting, claiming to have switched sides in a "war on Islam" waged by the United States. In 2013, a jury panel of 13 officers convicted him of 13 counts of premeditated murder and 32 counts of attempted premeditated murder, and unanimously recommended he be dismissed from the service and sentenced to death.
Hasan is currently incarcerated at the United States Disciplinary Barracks at Fort Leavenworth, Kansas. In early October 2026, President Donald Trump approved his execution by firing squad, whereupon acting Secretary of the Army Adam Telle scheduled it to be carried out at Fort Hood on December 3, 2026 at 1 p.m. CST (7 p.m. UTC). Subsequently, Secretary of Defense Pete Hegseth announced it would be livestreamed, which sparked widespread backlash. The plan to livestream it was later canceled by President Donald Trump. If Hasan's execution is carried out, he will be the first member of the U.S. Armed Forces to be executed since John A. Bennett, who was hanged for rape and attempted murder in 1961, and the first member of the U.S. Armed Forces to be executed by firing squad since Dan J. Lee in 1945.
Nidal Malik Hasan was born on September 8, 1970, at Virginia Hospital Center in Arlington County, Virginia. His parents were naturalized American citizens of Palestinian origin; they had immigrated years earlier from al-Bireh, a city in the West Bank near Jerusalem.
Raised in the Muslim faith with his two younger brothers, Hasan attended Wakefield High School in Arlington for his freshman year in 1985. His family moved to Vinton, Virginia, near Roanoke, in 1986, where his father had moved a year earlier to set up what would become a number of family-owned businesses, including a market, restaurant, and bar.
Hasan graduated from Roanoke's William Fleming High School in 1988. His father died in 1998 at the age of 51; his mother died three years later at the age of 49. One of his brothers continues to live in Virginia, while the other moved to Jerusalem.
Military service, higher education and medical career
Hasan enlisted in the United States Army in 1988 after graduating from high school. He attended college during this time, earning an associate degree in science from Virginia Western Community College in 1992. In 1995, he graduated from Virginia Tech with a bachelor's degree in biochemistry. He completed both of these programs with Latin honors. He was commissioned as an officer in the Army Medical Department in 1997, and enrolled at the Uniformed Services University of the Health Sciences (USUHS) in Bethesda, Maryland.
Hasan's performance was marginal while enrolled at USUHS. He was on academic probation during much of the six years he required to complete the four-year curriculum and graduate medical school. Upon graduation in 2003, Hasan completed his internship and residency in psychiatry at the Walter Reed Army Medical Center (WRAMC). He completed his psychiatry training with a two-year fellowship in disaster and preventive psychiatry, earning a master's degree in public health. During his training at Walter Reed, he received counseling and extra supervision.
According to The Washington Post, Hasan made a presentation titled "The Quranic World View as It Relates to Muslims in the U.S. Military" during his senior year of residency at WRAMC; it was not well received by some attendees. He suggested the U.S. Department of Defense "should allow Muslims [sic] Soldiers the option of being released as 'Conscientious objectors' to increase troop morale and decrease adverse events." On a previous slide, he explained "adverse events" could be refusal to deploy, espionage, or killing of fellow soldiers.
Retired Colonel Terry Lee, after working with Hasan, recalled the fatal shooting of two recruiters in Little Rock, Arkansas, greatly affected Hasan. Lee told Fox News that Hasan made "outlandish" statements against the American military presence in Iraq and Afghanistan, reportedly saying that "the Muslims should stand up and fight against the aggressor," referring to American soldiers. Hasan expressed hope U.S. President Barack Obama would withdraw troops. He was frequently agitated and argumentative with other Army personnel.
Despite these problems, Hasan was promoted from captain to major on May 17, 2009, while the Army's medical corps had chronic shortages of majors. In July 2009, he was transferred to Darnall Army Medical Center in Fort Hood, Texas, moving into the city of Killeen. Two weeks later, he lawfully purchased an FN Five-seven handgun. Prior to his transfer, Hasan had received a "poor performance" evaluation from supervisors and medical faculty. Despite concerns, his former boss, Lt. Col. Ben Phillips, graded his performance as "outstanding."
Hasan's cousin, Virginia attorney Nader Hasan, disputed the assertion that he was "disenchanted with the military," but said Hasan dreaded war after counseling soldiers with post-traumatic stress disorder. He was "mortified by the idea" of deploying after he heard on a "daily basis the horrors they saw over there." Nader also stated Hasan was harassed by his fellow soldiers. "He hired a military attorney to try to have the issue resolved, pay back the government, to get out of the military. He was at the end of trying everything."
Hasan's aunt also said Hasan sought discharge because of harassment relating to his Islamic faith. An Army spokesman did not confirm the relatives' statements, with the deputy director of the American Muslim Armed Forces and Veterans Affairs Council stating the reported harassment was "inconsistent" with their records.
Hasan's uncle Rafiq Hamad, a resident of Ramallah in the West Bank, characterized Hasan as gentle and quiet. He fainted while observing childbirth, hence his choice to focus on psychiatry. He was deeply sensitive and mourned a pet bird for months after it died. Also near Ramallah, cousin Mohammed Hasan said, "because he's Muslim, he didn't want to go to Afghanistan or Iraq, and he didn't want to expose himself to violence and death." Mohammed stated his cousin was a "pleasant young man" who was happy to graduate and to be joining the army after his uncle and cousins served. They never talked about politics, but Hasan complained "he was treated like a Muslim, like an Arab, rather than an American; he was discriminated against."
According to military records, Hasan was unmarried. However, David Cook, a former neighbor, stated, in 1997, Hasan had two sons living with him and attending local schools. Cook said, "As far as I know, he was a single father. I never saw a wife."