Dan Colasanto graduated from the United States Military Academy in 1988 and served in the United States Army for four years before joining the Garland Police Department in 1992. Dan has served in the Patrol Division, Gang Unit, Narcotics Unit, and Quartermaster. He is currently assigned to the Patrol Division as a Patrol Lieutenant and SWAT Supervisor.
He has been on the Garland Police Department for 25 years, and with the S.W.A.T. Team for 22 years, where he has served on the Assault Team as a Rear Guard, Point Man and Team Leader. He was the SWAT Team Supervisor during the ISIS inspired terrorist attack in Garland on May 3rd, 2016, and was responsible for the planning and security of the event.