A shooting erupted at the Bite of Seattle festival at Seattle Center around 6 p. m.
Sunday, leaving three people dead and at least four others injured as panicked crowds fled for cover.
>>> Pirates Rookie Esmerlyn Valdez Exits Game After Hand Injury
Authorities identified the deceased as Ashley Whitehead, 56; Carlos Israel Sanchez Villalba, 44; and Junior Cee Niko Semo, 19.
According to police, Semo was one of the individuals involved in the shooting.
A 15-year-old male suspect was taken into custody for investigation of three counts of first-degree assault and illegal firearm possession.
Officials noted that a 2-year-old boy injured during the chaos was discharged from the hospital on Monday.
Police Chief Shon Barnes provided initial updates after searches across the park campus, including nearby entertainment venues.
Investigators continue to examine the circumstances surrounding the altercation between the suspects. Assistant Chief Nicole Powell said, "We believe this could be gang related."
Eyewitnesses described a sudden outbreak of gunfire near the festival's main attractions.
Dexter Rothschild, a caricature artist, said the gunman appeared to be using a single handgun and was dressed in dark clothing.
"His arm was just moving up and down," Rothschild recalled. "To me, it looked like somebody who was not in control."
Hannah Furfaro, a Seattle Times reporter, recounted fleeing toward nearby streets along with hundreds of other festival visitors.
>>> Ali Sanchez Hits First Major League Home Run in Yankees Win
"This was the scariest moment of my life," she said.
