Police body-camera video and surveillance footage became proof against a police officer who severely beat a suspect in holding cell in December. To warning calls that the beating was being video recorded, a cop answered only “F**k that!”

Two Federal Heights Police officers were attempting to calm a rowdy suspect at the suburban Denver police station in December. But the standard detention turned into a battering spree when one of the officers appeared to lose his temper after the detainee tried to slap him.

Officer Mark Magness, 51, pleaded guilty to assault, received year of probation and has been fired from Federal Heights Police force for mercilessly beating suspect Kent Lasnik, 48, detained for allegedly attacking a liquor store clerk. The beating that occurred in several stages ended in Lasnik bleeding from his mouth.

The incident took place in December but ABC7 obtained it recorded from several viewpoints only now.

RT