Does any one know the title of a 1950's(?) sci fi B-movie about a guy on the lam who hides out near a derrick on an atomic proving ground & when an A-bomb goes off his flesh takes on the toughness of the steel? And he's no hero, he's bulletproof now so he goes on a crime spree. At the end they kill him with flamethrowers. This film also featured knife-proof melons, I swear! Or do you know how I could find the title? TY!