I'm still not seeing what you suggested. Again, if there were barbed darts sticking into his chest, I'm confident they would have broadcasted every detail of the wounds etc. I think they would have done so immediately after the video was released. But they never did.
Well, it does look like wires. As to broadcasting the alleged fact that would not be wise as to both the cop and his employer will be sued for Wrongful Death. In short save it for use later. Once again I’m assuming the photos are genuine.
Perhaps into a vest.