One witness said he heard a woman moaning and shrieking before the shots were fired. He said the suspects fled on foot.
The incident unfolded at about 5 a.m. in the 21000 block of 132nd Avenue SE in Kent when neighbors called 911 to report hearing some kind of dispute in the street followed by gunfire.
When officers arrived at the scene, a man believed to be in his early 30s was found severely wounded in the street. He later died of his injuries.
Police are speaking with witnesses but have only a vague description of the person who fired the shots.
One witness who lives in the neighborhood said he was walking nearby when he heard he heard someone in distress.
"I heard some moaning and shrieking before the shots were fired - it sounded like a woman," said the witness, Zach, who didn't want his last name used.
He then heard three gunshots - two close together followed by another one several seconds later.
The suspects then ran from the scene, he said.
"They were on foot. I didn't hear any cars, I didn't see any cars leaving. So whoever did it ran off," he said.
He then saw the victim lying face down on the pavement. He appeared to be dead or nearly dead. When police and medics arrived shortly afterward, it was too late to save the victim.
Zach said he talked to another witness who said one of the suspects appeared to be wearing a mask.
Neighbors said they believe the victim lived in a home in the neighborhood.
Police continue to investigate, and the search for the shooter or shooters continues.