I'm no believer in the idea of death sentences but I might make an exception in the case of that scumbag- the Chinese had something called 'the death by a thousand cuts' (and yes, it was real) which could take days if not weeks.

The ancient Afghans would turn that kind of criminal over to the women...............

The one consolation is that as a bent copper and woman abuser he'll have a hell of a time inside!