District Attorney David Prater on Tuesday filed the charge against Sergeant Keith Sweeney and listed an alternative charge of first-degree manslaughter in the November 15 fatal shooting of 29-year-old Dustin Pigeon.
Court documents do not list an attorney for Sweeney.
Police say Sweeney and another officer responded to a report of a suicidal person and found Pigeon trying to set fire to himself with a lighter fluid and a lighter. Police say the other officer fired a bean bag, to no effect, before Sweeney fatally shot him.
Captain Bo Mathews says Sweeney remains on paid leave.