15-year-old arrested at Seattle food festival shooting was armed with a ghost gun, police say

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The 15-year-old arrested after a shootout at a food festival near Seattle’s Space Needle over the weekend was armed with a ghost gun with an extended magazine. Police Chief Shon Barnes told a news conference Tuesday that the weapon was a 9 mm gun from Polymer80 — a now-defunct company that was once a leading manufacturer of ghost gun parts. Barnes says investigators also recovered two other weapons and 14 shell casings that had been fired by weapons of two different calibers. The shooting left three people dead, including a 19-year-old gunman, and at least four people injured, including a toddler. Authorities say they believe the violence was gang-related.