The suspect wanted for the murder of a 17-year-old Shorecrest High School student and shooting her 18-year-old cousin, all allegedly over a cell phone, turned himself in early Monday.
The King County Jail roster shows Joseph Cooley, 20, was booked into jail just after midnight. He was booked on second degree murder charges.
A King County Sheriff's Department spokesperson said Cooley turned himself in. A warrant was issued for his arrest on Friday.
Victim Tiana Montgomery, 17, died hours after she was shot last week in the parking lot of the Maplewood Court Apartments. Montgomery and Darrol Edwards, 18, were sitting in an SUV when they were gunned down. Edwards was shot seven times and continues to recover in the hospital.
According to court papers, prosecutors said Cooley shot the pair in a dispute over a cell phone. Montgomery may have been shot accidentally as Cooley fired at Edwards.
"This cell phone issue was like a $50 phone," said Tiana's aunt, Tana Yasu-Montgomery, in an interview Friday. "Now we [will] never ever be able to hear Tiana's voice and see that smile."