Orlando nightclub shooting
Mateen was "on the radar" of officials prior to the incident, though he was not subject to any active investigation. His parents were born in Afghanistan.
During the premeditated attack, Mateen was armed with multiple weapons, including "some kind of device" which has yet to be specified. After opening fire for several minutes, he created a hostage situation and died around 5 a.m. in a gunfight with police inside Pulse.