(CNN) Here's a timeline of the deadliest mass shooting in U.S. history, with at least 50 dead and at least 53 wounded at Pulse nightclub in Orlando, Florida. ET: A post on Orlando Police Department's official Twitter account says: "Shooting at Pulse Nightclub on S Orange. ET: Authorities identify the Orlando nightclub shooter as Omar Saddiqui Mateen, 29, of Fort Pierce, Florida. ET: Shooting erupts at Pulse, a gay nightclub in the heart of Orlando, as some 320 people enjoy the club's "Latin flavor" event. Shooting at Pulse Nightclub on S Orange.

Source: CNN June 12, 2016 17:37 UTC