SEATTLE (AP) — A man who died in a shootout with authorities after gunning down two people in Washington state, including a U.S. Forest Service officer, was wanted for failing to show up at an August meeting with his probation officer.

The probation officer had requested an arrest warrant for Shawn M. Roe, 36, but Mason County Superior Court had not yet issued one, Department of Corrections spokesman Chad Lewis told The Seattle Times.

The FBI and local authorities are investigating the shooting Saturday afternoon of officer Kristine Fairbanks, 51, and a man in his 60s who hasn't been identified. The shootings occurred after Roe was pulled over while driving a stolen pickup in the Olympic Peninsula about 50 miles west of Seattle.