A standoff between U.S. Marshals and a Cleveland Police officer accused of sexual assault at W 165th St. and Lorain Road is over after the suspect shot himself in the chest.

Officials say Officer Tommie Griffin III took his own life using an AR-15 firearm after officers entered the home following an 6-hour-long standoff. Griffin has been awaiting trial for allegedly beating and sexually assaulting a Parma woman, but he ended up on the run after his ankle monitoring device broke.

Griffin was apparently holed up in an acquaintance's home during the standoff. He was found dead in the basement.

Authorities say the accomplice who allowed Griffin to stay in his home will be charged.

WATCH: U.S. Marshal Pete Elliott briefs reporters after the standoff came to a close: