The Killeen Police Department officer who shot and killed a man who was having a mental health episode in January is back on duty but not on patrol, an official said. Reynaldo Contreras, a five-year veteran of KPD, was put on âadministrative leaveâ after the shooting of 52-year-old Patrick Lynn Warren Sr. on Jan. 10. Body camera video shows Warren yelling and waving his arms in Warrenâs front yard before charging at the officer, who first used his Taser but it was ineffective against Warren. âOfficer Contreras is currently on administrative duty,â said KPD spokeswoman Ofelia Miramontez on Wednesday. She said that the process of returning to duty after an officer is involved in a shooting is handled on a âcase-by-case basis.â