Rifle used in deadly Riverside shooting was untraceable ‘ghost gun,’ sources say

The semi-automatic rifle used by a convicted felon in the Riverside shooting that killed a CHP officer was a ghost gun, sources say.

from California https://www.latimes.com/california/story/2019-08-14/rifle-used-in-deadly-riverside-shooting-was-untraceable-ghost-gun-sources-say
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