Omar Mateen

Omar Mir Seddique Mateen (; born Omar Mir Seddique; November 16, 1986 – June 12, 2016) was an American terrorist and mass murderer who killed 49 people and wounded 53 others in a mass shooting at the Pulse nightclub in Orlando, Florida, on June 12, 2016, before he was killed in a shootout with the local police. It was the deadliest mass shooting in American history until the Las Vegas Strip shooting on October 1, 2017, and it is the deadliest known incident of violence against LGBT people in U.S. history.

Born in New York to Afghan-American parents, his family moved to Florida as a child, where he displayed an interest in violence and had behavioral problems in school, including struggling academically and receiving numerous suspensions. As an adult, he drifted through various jobs and a failed marriage before eventually becoming a security guard by profession. Before the shooting, he had been investigated for connections to terrorism by the Federal Bureau of Investigation (FBI) in 2013 and 2014. During that period, he was placed on the Terrorist Screening Database, but was subsequently removed. In a call to 911 during the shooting, Mateen identified himself as "Mujahideen," "Islamic Soldier," and "Soldier of God"; and pledged his allegiance multiple times to Abu Bakr al-Baghdadi, who at the time was the leader of the militant jihadist group, the Islamic State. He said the shooting was "triggered" by an airstrike in Iraq that killed Abu Waheeb, an IS commander, six weeks before. Provided by Wikipedia