Law enforcement sources have identified the shooter who opened fire on the dance floor inside Pulse night club Orlando as US citizen Omar Mateen, 29, from Port St. Lucie in Florida. He was wielding an AR-15 assault rifle and a handgun. The gunman was born to Afghan parents.
At least 50 people were killed and 53 others were injured in the shooting in the deadliest mass shooting in US history. A surgeon at Orlando Regional Medical Center said the death toll was likely to climb. An FBI spokesman said the mass shooting is being investigated as an act of terrorism, adding that they are looking into whether this was an act of domestic or international terror, and if the shooter was a lone wolf. The shooting took place just 4 miles from the earlier assassination of The Voice singer Christina Grimmie, 22, who was shot dead at The Plaza Live on Friday.