ORTING, Wash. -

The Pierce County sheriff's office is investigating how a threatening man was shot and killed by an off-duty Fife police officer outside his home in Orting.

Sheriff's spokesman Ed Troyer told The News Tribune the 21-year-old man apparently lives in the same neighborhood as the 35-year-old officer.

Troyer says the man appears to have had mental health issues in the past. He made repeated calls to 911 dispatchers Tuesday evening about shooting people and drove to the home where a patrol car was in the driveway.

The officer heard sounds that made him think his house was being fired at and shot and killed the man.

Deputies recovered a rifle that apparently belonged to the man.