Three people were killed and seven were wounded in Saturday's shooting.
Bullets recovered from two bystanders killed during a shootout at a Seattle festival last weekend do not appear to have come from the gun that a 15-year-old arrested at the scene was firing, police said.
The 15-year-old arrested after a shootout at food festival near Seattle's Space Needle over the weekend was armed with a ghost gun with an extended magazine, police said Tuesday.
News that there were at least three suspects followed a series of confusing statements from city officials concerning the shooting.
Officers responded Sunday morning to the 250 block of Biltmore Avenue.
A shooting near a street festival killed two people and wounded four others on Saturday in Toronto, Canada, prompting police to warn of an active shooter before later saying the scene was secure.