William Treadwell owned his own bank in Lenawaee County, Michigan.
William stole $60,000 in January 1884, which is the equivalent of about $1 million dollars today.
William, his wife Mary, and his father-in-law all went on the run. They were caught, but only William was taken to jail.
A few hours later, William and a horse thief named John Cowell broke out of jail.
William’s wife, Mary, had slipped $800 to William, and despite the promise of more money, John decided to kill William and take the cash.
The banker turned bank robber died a month and a half after committing his crime.