FEDERAL WAY, Wash. (AP) — Authorities say a man fatally shot his live-in girlfriend at an apartment south of Seattle then killed three men, including a neighbor who told others to call 911 and then retreated inside his unit.

The 27-year-old suspect was later shot and killed in a parking lot by responding officers.

Federal Way Police Chief Brian Wilson characterized the initial shooting Sunday night as "a domestic-violence homicide."

He says investigators believe the shooter may have been trying to kill witnesses.

A King County medical examiner's spokeswoman says the victims are not expected to be identified until Tuesday afternoon.