(CNN)[Breaking news update at 8:10 a.m. ET] Police crisis negotiators tried to negotiate with Orlando nightclub shooting suspect Omar Mateen during the attack, Orlando police Chief John Mina told reporters Monday. "He was cool and calm when he was making those phone calls to us," Mina said. "We had a team of crisis negotiators that did talk to the suspect just trying to get as much information as possible. ... He really wasn't asking for a whole lot. We were doing most of the asking." [Breaking news update at 8:03 a.m. ET] People other than gunman Omar Mateen are being...