3:04 pm ET Jun 12, 2016 2016-06-13T18:56:27+00:00 A gunman who claimed allegiance to the Islamic State killed 49 people and wounded 53 more in an attack at a crowded gay nightclub in Orlando, Fla., early Sunday. It was the worst mass shooting in United States history. The latest developments will appear below. Read more about the Orlando shooting here . A summary of what is known and not known about the nightclub attack is here .
10:55 am ET Jun 12, 2016 2016-06-12T15:37:01+00:00 Assault Rifle Is Among Weapons Used in Attack Photo An AR-15-style assault rifle. Credit Alex Brandon/Associated Press At a news conference, Chief John Mina of the Orlando Police Department said the weapons recovered from the dead suspect included a handgun and an “AR-15-type assault rifle,” along with additional rounds.