Police probe ties between teen shooters at Seattle Food Festival

Two teenagers started shooting at each other during the Seattle Food Festival at Seattle Center near the Space Needle.
The shooting killed two people and one 19-year-old suspected gunman, with at least three others including a toddler wounded.
A 15-year-old suspect was detained on firearm violation and three counts of first-degree assault.
Police believe the teenagers were from rival groups and the shooting was targeted, though bystanders were among the victims.
Police are searching for a third possible suspect.
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