Homicide charges have been filed against a man accused of robbing and killing a man who was reported missing earlier this month and later found dead in the Ohio River.

According to court paperwork, Jose Soto, 25, has been charged with criminal homicide and robbery in connection with the death of Stephen Williams.

Pittsburgh Police and the Allegheny County Medical Examiner's Office said Williams, 42, was found dead in the Ohio River near the Rivers Casino last week after he was reported missing days prior. 

The criminal complaint filed by police alleges that Soto and another man were seen on surveillance video assaulting and robbing Williams before throwing him into the nearby river. 

Surveillance cameras spotted Williams walking on Strawberry Way before making his way through Downtown, according to the criminal complaint. Polic said two men followed Williams down a ramp under the David L. Lawrence Convention Center to the riverwalk. That's when, police say, the robbery and assault happened.

Police say Soto is already being held in the Allegheny County Jail on separate charges.