Officers were called to reports of a shooting around 4:30 p.m. in the area of Everett Ave. and E. 42nd St. on Oct. 21.
Tacoma Police said two women and a man were killed. A fourth person, a man, later died at the hospital.
The shooting happened on the city’s Eastside in the Salishan neighborhood.
Police spokesperson Wendy Haddow said the shooting happened in an alley behind a residence at about 4:24 p.m. and that at least one victim was found in the street in front of the residence.
It was unclear what led to the shooting. Police identified the victims on Friday as men ages 22 and 19, and women ages 42 and 22.
On Oct. 29, Tacoma police and the SWAT team served a warrant at a house in Tacoma, taking a 22-year-old male suspect into custody.
The man has been booked into the Pierce County Jail on four counts of first-degree murder.
There have been 27 homicides in Tacoma this year, Haddow said. The city has a population of about 212,000.
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