Storyline
Bite of Seattle mass shooting 2026
One page that accretes the verified record as the story develops. Every fact keeps its date and its sources.
1 DAYS
13 FACTS
2 EVENTS
1 SOURCES
FIRST ENTRY JUL 30
JUL 30 · Day 1
Bite of Seattle mass shooting suspect's prior gun charge and police run-ins revealed
Junior Niko-Semo, 19, was killed in the Sunday shooting.
William Kirk said an untraceable firearm is prohibited by state law.
Niko-Semo was arrested in 2024 after a Seattle police officer heard gunshots in Rainier Beach and located him with a Glock 19 handgun nearby.
JUL 30 · Day 1