This would cost money but be extremely effective, and no nearly as risky as the other ones.
Buy a ton of drugs, enough of one kind to the point where it's enough over the law where it would be considered in possesion with intent to sell. Then break into his car some how one night quietly, no broken windows, throw in a gun from a pawn shop and the drugs. Call the cops, and say you walked by the car and saw the drugs and gun on the passanger seat, call from a payphone and hang up. Also if you wanted to fire off the gun into the air so other people call the cops to. Guy would hopefully get ****ed into prison time, and never get a decent job again. Bastard would get what he deserves. //content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gif And get railed by a 300 lb guy in prison, with no lube.