Lab supervisor: Castile gun was loaded, no round in chamber

ST. PAUL, Minn. (AP) — A Minnesota police officer who fatally shot a black motorist told a supervisor on the scene that he didn't know where the motorist's gun was, but added that he told the motorist to get his hand off the firearm, according to audio recorded after the shooting.

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Lab supervisor: Castile gun was loaded, no round in chamber