The 911 call came Sunday night.
A 27-year-old man allegedly told dispatchers he’d fatally shot his younger cousin, and asked for help just before 9 p.m.
When Pierce County sheriff’s deputies arrived at the home in the 17300 block of 97th Avenue Court East, they found a 22-year-old man dead from an apparent gunshot wound.
The victim has not been identified.
Investigators say the man waited several hours to report the homicide.
He was booked into Pierce County Jail on suspicion of first-degree murder.
The shooting was over a drug dispute, sheriff's spokesman Ed Troyer said.
This is a developing post. More information will be added when it becomes available.