On June 12, 2016, 29-year-old Omar Mateen killed 49 people and wounded 58 others in a mass shooting. The attack was the deadliest single gunman mass shooting in United States history until the 2017 Las Vegas shooting, the deadliest incident of violence against LGBT people in U.S. history, and the second deadliest terrorist attack on U.S. soil since the September 11 attacks of 2001.