Orlando gunman Omar Mateen called himself an Islamic soldier and praised God in Arabic during the attack at the Pulse gay nightclub, according to 911 call transcripts released Monday. The Federal Bureau of Investigation released parts of the transcripts of calls Mateen made during the June 12 shooting. Audio was not made public. Officials said it would be too painful for victims of the shooting and their families to hear. FBI Special Agent Ron Hopper said the calls showed the gunman acted in a “chilling, calm and deliberate manner.” “I let you know, I'm in Orlando and I did the shootings,” Mateen said in his first call to a 911 dispatcher at 2:35 a.m., about 30 minutes after he began shooting. During the call, the killer also spoke Arabic to the dispatcher and said, “Praise be to God, and prayers as well as peace be upon the prophet of God.” Mateen was shot dead by police during the attack on the popular gay nightclub that left 49 people dead and 53 injured.