Officials, aided by the FBI, warned that a lengthy investigation was ahead given the number of victims and the scope of the violence. There has been no claim of responsibility for the attack on jihadi forums, but ISIS sympathizers have reacted by praising the attack on pro-Islamic State forums. The shooter had an assault-type weapon, a handgun and “some type of (other) device on him.” “It appears he was organized and well-prepared,” Orlando Police Chief John Mina said early Sunday. * Mateen called 911 around the time of the attack to pledge allegiance to ISIS and mention the Boston bombers, according to a U.S.
Pierce, Florida, a law enforcement source told CNN. * 50 people were killed inside the Pulse club and at least 53 people were injured, police say. ORLANDO, Florida - A gay nightclub here was the scene early Sunday of the worst terror attack in U.S. Please look at the time stamp on the story to see when it was last updated. This is an archived article and the information in the article may be outdated.