Orlando shooter frequented the club where he killed 49 people and used gay dating app, witnesses say

Kevin West, a regular at Pulse, said Omar Mateen messaged him sporadically over the last year using the app Jack'd. West was dropping off a friend at the club when he noticed Mateen crossing the street wearing a dark cap and carrying a cellphone at about 1 a.m., an hour before the shooting. "He walked directly past me. I said, 'Hey,' and he turned and said, 'Hey,'" and nodded his head, West said. At least four regular customers of Pulse told the Orlando Sentinel on Monday that they believe they had seen Mateen there before.