Seattle police say 15-year-old arrested in connection with food festival shooting had a ghost gun

SEATTLE (AP) — 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 said Tuesday.

Police Chief Shon Barnes told a news conference that the weapon was a 9 mm gun from Polymer80 — a now-defunct company that was once a leading manufacturer of ghost gun parts.

WATCH: 3 killed in shooting at crowded festival in Seattle

Investigators also recovered two other weapons and 14 shell casings that had been fired by weapons of two different calibers, he said.

The shooting in