Remembering History: The last "Public Enemy Number One" to be captured in the United States, Albin Francis Karpowicz -- known as "creepy" Karpis thanks to his sinister smile -- was Alcatraz's longest-serving inmate, with a 26-year stint at the prison.

The last "Public Enemy Number One" to be captured in the United States, Albin Francis Karpowicz -- known as "creepy" Karpis thanks to his sinister smile -- was Alcatraz's longest-serving inmate, with a 26-year stint at the prison.

The last "Public Enemy Number One" to be captured in the United States, Albin Francis Karpowicz -- known as "creepy" Karpis thanks to his sinister smile -- was Alcatraz's longest-serving inmate, with a 26-year stint at the prison.