The object fell off the cop’s belt when he grabbed Scott by the wrist. Then he tasered Scott. Then he shot scott, taser still in hand.
After, he retrieved the object, walked back and dropped that same object near the body.
He had the taser with him the whole time. He picked up the object in one hand, never transferred it and it was the object in that same hand that he dropped.
He didn’t shoot Scott with the taser still in his hand. When he reached for his gun, his left hand was empty. As he raised his gun, he pulled his left hand up to brace his gun as he shot. Standard shooting technique.
The taser was certainly not in the holster on his left hip when he went for his gun. It wasn’t in his left hand when he shot Scott. Has to be on the ground somewhere if Scott didn’t have it.