Tags: Criminal.
Wilbur Underhill Jr. (March 16 1901 – January 6 1934) often called Mad Dog or the Tri-State Terror was an American criminal burglar bank robber and Depression-era outlaw. He was one of the most wanted bandits in Oklahoma during the 1920s and 1930s and co-led a gang with Harvey Bailey that included many fellow Cookson Hills outlaws including Jim Clark Ed Davis and Robert Big Bob Brady.