His favorite victims were young boys ages 8-16yrs old. During the 1990's they found 36 boys burried in a graveyard but later into the investigation he confessed to mutilating, raping and killing 140 boys and still investigating 172 cases. During his time of his killings he would tie them up in sadistic mannierisms.
Different ways that he would bribe them was by using money, food or anything kids would might like. Once he had them he'd tie them with a roPe around their hands onto a bed or pole then he would rape them.Afterwards he cut their throats and mutilate their bodies. He would use mainly knives and srewdrivers.