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.