Here is a timeline of major terrorist attacks in the United States since 9/11, prepared by The Guardian.
4 July, 2002
An Egyptian national, Hesham Muhammad Hadayet, a permanent resident of the US, killed two people and wounded four at a ticket counter in Los Angeles International Airport. He also died during the attack. Investigators said it was an act of terror, but Hesham was acting alone.
1 June, 2009
Abdulhakim Mujahid Muhammad, an American-born convert to Islam, opened fire on an army recruiting office in Arkansas. He killed one soldier and wounded another. He proclaimed himself as a member of al-Qaida in the Arabian Peninsula. His lawyers produced an expert who testified that he was delusional and Muhammad eventually pled guilty to avoid the death penalty.
5 November, 2009
Army Major Nidal Hasan opened fire in the Soldier Readiness Processing Center in Texas. The American-born killed 13 fellow soldiers and wounded 32. Hasan was also paralyzed in the attack. At his trial, he declared himself to be at war with America and investigators found that although he acted alone, he had accessed jihadist websites. Hasan was sentenced to death and is currently incarcerated in Fort Leavenworth, Kansas.
15 April, 2013
The Boston Marathon bombing attack was carried out by two brothers, Dzhokhar and Tamerlan Tsarnaev. The bomb placed at the finish line killed three people and injured 264. The two later killed Sean Collins, an MIT police officer. In addition, in a firefight between the brothers and the police, 16 officers were injured and another later died. Tamerlan, the older brother, died after he was shot by police and his brother ran over him in a car in an attempt to escape. Dzhokhar was apprehended and sentenced to death in federal court. The two Kyrgyz-American immigrants had been self-radicalized but learned to make their bomb from the al-Qaida online magazine Inspire.
16 July, 2015
Muhammad Youssef Abdulazeez attacked a marine recruiting office and US Navy reserve centre. Abdulazeez first opened fire on the recruiting office from a car, wounding a recruiter inside. He then drove to a Navy reserve centre where he killed four marines and one seaman before police officers killed him. Abdulazeez was an American citizen born in Kuwait.
15 December, 2015
A married couple, Syed Rizwan Farook and Tasheen Malik, opened fire on a Christmas party at the San Bernandino County Department of Public Health, where Farook worked. Fourteen people died and 24 were injured. Farook was born in the United States and Malik was a Pakistani immigrant who married Farook in Saudi Arabia. The two were later killed in a shootout with police. The FBI later described the two as “home-grown violent extremists” and found that they had radicalised before they met online.
12 June, 2016
American-born Omar Mateen killed 49 people and wounded 58 at the Pulse nightclub in Orlando, Florida. In calls made during his rampage at the gay nightclub, Mateen pledged allegiance to Isis. After his initial assault, the attack into a hostage situation that lasted for nearly three hours. Eventually police stormed the nightclub and killed Mateen in a shootout.