Melvin Horace Purvis II was an FBI agent instrumental in capturing bank robbers John Dillinger and Pretty Boy Floyd in 1934. All of this would later overshadow his military career which saw him directly involved with General George Patton, Hermann Göring, and the Nuremberg Trials.

John Herbert Dillinger was an American gangster during the Great Depression. He commanded the Dillinger Gang, which was accused of robbing 24 banks and four police stations. Dillinger was imprisoned several times and escaped twice. He was charged with but not convicted of the murder of an East Chicago, Indiana, police officer, who shot Dillinger in his bullet-proof vest during a shootout; it was the only time Dillinger was charged with homicide.