i'm robin curnow at the cnn center. >> and i'm george howell live in orlando, florida.ow some people were inside that club, how they managed to survive. let me tell you these stories. one person who hid in the bathroom covered herself with bodies for protection. some of the entertainers in the building hid in dressing rooms. then they escaped by crawling out when police removed the air-conditioning unit. authorities say the gunman, 29-year-old omar mateen, pledged allegiance to isis during that shooting. mateen's parents say that he expressed outrage after seeing two men kiss in miami. but they didn't know of any connection that he had to the terror group. the shooting happened just as the club was set to close early sunday morning, and the situation pressed on then for several hours. our jessica schneider takes a look now at the timeline of these attacks. >> reporter: numerous cop cars out here. >> reporter: the worst u.s. terror attack since 9/11 begins here. at pulse, a gay nightclub in the heart of orlando. 2:00 a.m. closing time. some 250 people crowded in the club