Infamous mob boss James "Whitey" Bulger was killed in prison.
Guards at the federal penitentiary in West Virginia found him unresponsive in his cell Tuesday morning. The FBI is investigating his death.
Bulger led a Boston gang that was responsible for decades of violence, and he was on the FBI's most wanted list for years. In 2013, he was convicted for his role in 11 murders and sentenced to two life terms.
Bulger was 89 years old.
Additional reporting from Newsy affiliate CNN.
