Serial killers may have a childhood history of abusing or torture animals while showing no remorse. Well the parents of a seven year old Australian boy who went on a killing spree after braking into the local zoo should be on the look out. He bashed some expensive lizards to death with a rock. He also fed live animals to the zoo’s crocodile; climbing over the outer fence to get up close and personal with the croc. Zoo administrators threatened to sue the parents of the unliable youth. What a mess. Where is the parental supervision? Steve Irwin the crocodile hunter is probaly rolling in his grave.