well, since he likes to intimidate people and is easy to anger.
you'll need at least two people for this, one of you will have to hide near his place and report the situation.
call him, tell him you're the police and start to ask random and stupid questions just to piss him off, once he is pissed by the harassment, start to verbally abuse him and his whole family, anything to make him rage, tell him repeatedly that you're the police and you will come to get him, at the same time call the real police and tell them there is an extremely angry guy in the neighborhood who looks deranged and dangerous, once the police are on their way, keep insulting him, and keep telling him that you're the police and you're coming for him, make him as mad as possible.
hang up right before the really police are on his door.
