Fan Casting The Undying Search

Young Kenny O'Brian leaves home the night of June 26th 20XX to party with friends, only to return home later that night to find the gruesome discovery of his parents' horrific murders. 3 years later, he trains in secret with armed weaponry to seek out the people responsible for his parents' murders and kill them. Kenny starts taking action into his own hands, and in the process becomes a symbol of fear to those who meet him when all he does is break their bones and accidentally kills them via defenestration and random melee weapons like rattles thrown in their faces. Cut him some slack, between him attaching himself to the lady detective investigating his parents’ murders and trying to ask out the pretty girl who helps him in his vigilante spree, he's actually a pretty sweet guy. Sadly, he's also caught the attention of those same criminals who hope to get a chop at his head. Does his quest for revenge mean doom for Kenny, or will those he meets help him make a choice to heal?