Danny Supeena was involved insurance scams, including several involving Johnny Mintsworth. When Mintsworth tried to back out of a scam faking his own death Supeena shot him and then killed his mother. Mintsworth survived and helped Dick Tracy set a trap for Supeena. Catching on to the trap before it was to late, Supeena killed Mintsworth before Tracy captured him with a tracer bullet. Supeena later died in the hospital.