UPDATED at 7:30 a.m. Tuesday
Pierce County sheriff’s detectives arrested a Puyallup man on suspicion of homicide Monday night after finding his roommate’s body buried in a shallow grave in a wooded area of Graham.
The investigation began Monday morning after somebody tipped detectives to the possibility of a homicide.
“Through investigation we located multiple crime scenes and eventually ended up at a grave,” sheriff’s spokesman Ed Troyer said.
The victim, a 31-year-old woman from the Puyallup/Bonney Lake area, has not been identified as of Tuesday morning. An autopsy was scheduled for today, the Pierce County Medical Examiner’s Office reported.
Troyer said the woman appeared to have been killed Sunday afternoon at a home in the 9800 block of 158th Street East.
Detectives searched the home, a vehicle and a dumpster before finding the grave in the 22700 block of 86th Avenue East.
A 50-year-old man was booked into jail on suspicion of first-degree murder. He’s expected to make his first court appearance Tuesday afternoon.
“We believe they were roommates,” Troyer said. “We’re still looking into their relationship.”
The motive remains unknown.