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Suppose someone beat a a baby to death. Does he/she not deserve to be beaten to death?
No. You put someone like that down clean, like a rabid dog or other threat. Beating someone (or something) to death, outside of some exigent circumstances where you are lacking tools and they must be stopped immediately, is IMO indicative of mental problems.
. If these cops really did murder the motorist (I don't know), I hope they are all executed.
Side note: we have four angles of video showing the cops beat the guy, and the guy goes to the hospital straight from the beating, and than dies at the hospital from injuries sustained in the beating. If you don't know they killed him now, what evidence would it take?