For over a decade, Whitey Bulger was America's most wanted gangster—the FBI's biggest domestic target. Wanted for 19 counts of murder, he hid in plain sight for 16 years with his girlfriend Catherine Greig. Read how he was caught.

A notorious Boston mob boss serving a life sentence for his part in 11 slayings, James 'Whitey' Bulger, 89, was ailing and confined to a wheelchair on October 30, 2018, when he was slain at the U.S. Penitentiary Hazelton. But the details around his death remain murky.