King Killer

Origin
When Dr. Link and Dr. Blink set out to create the most powerful criminal mastermind of all time, they could not decide which of them should be the subject of the experiment, so they found another weakling to conduct the experiment on. The result was King Killer, a man with the brains of 50 of the worst criminals of the time. The operation, which left a scar down the middle of his head, made King Killer bigger, stronger, smarter and possessed of uncontrolable feelings of aggression. King Killer quickly turned on his creators and set out to create a gang that would take over the entire United States. His first step was getting congress to turn the small county of Rex into an independant state, which would be the haven of the country's worst criminals, with King Killer crowning himself the "King of Crime." He was eventually stopped by Uncle Sam.

King Killer possessed superhuman strength (sufficient to rip a fire hydrant out of the ground and throw it), and superhuman durability (sufficient to get up after being punched through a steel wall). He carried a variety of weapons, and formed a small army of criminals before he was incarcerated.