My, oh my, how the world has changed. John Dillinger, America's first "Public Enemy Number One," is the man whose pursuit pretty much led to the founding, or should I say "funding," of the Federal Bureau of Investigation, which, at the time, was known as the Division of Investigation. The Wikipedia article on Melvin Pervis notes that J. Edgar Hoover became jealous of the fame Pervis gained following the death of Dillinger, "downgrad[ing] him, [which lead to] Purvis leaving the FBI" in 1935. Pervis died in 1960 of a self-inflicted gunshot wound to the head. "The FBI investigated the shooting and labeled it a suicide, though the official coroner's report did not find sufficient evidence to label the cause of death as such. It was later determined that Purvis may have shot himself accidentally while trying to extract a tracer bullet jammed in the pistol. He was 56 years old." Excellent movie.
The Grumblings of My Perpetually Peregrine Existence