12.00am Omar Mateen enters Pulse armed with an AR-15 style assault weapon and a semi-automatic handgun and opens fire. A police officer on duty at the scene engages him in a gun battle, drawing Mateen out onto S. Orange Ave.

22.30am Mateen re-enters the club after the shootout with the police officer. Survivor Christopher Hansen was in club’s VIP area near the front of the main dance floor when he heard a “boom ... boom ... boom” and thought at first that it was the beat of the music.

32.30-5.00am Ray Rivera, the club's music performer known as DJ-Infinite, shelters in his booth with a male and female clubgoer. "From my DJ booth all I could see was bodies lying on the floor," he said.

42.30-5.00am People hide in the bathrooms and text their families while a hostage situation develops. Police mount a rescue at 5.00am using an armored response attack truck to open a two- or three-feet hole to the bathrooms in the rear of the building. Dozens escape and Mateen emerges and is killed by police.