Oil Can Harry, leader of the Claw Gang,was once an unamed scientist cat. He found it fun though to literally COOK up crime schemes. Thus, he began a crime spree, and two murders. Of MICE. They were two of Mighty Mouse's friends, and he hauled Oil Can Harry off to prison. Harry swore he would make Mighty Mouse suffer. Soon he found Mitzi Mouse, and murdered her. Mighty Mouse thought it was merely the Claw Gang until he found out the truth. Then he was beat up by Mighty Mouse and thrown in jail for the rest of his life.