Authorities say Chicago mob hitman Frank Calabrese Sr. died this week in federal prison. He was 75.
According to NBC Chicago, Calabrese Sr., one of several reputed mobsters convicted in 2007 in a racketeering conspiracy that included murder, extortion and loansharking, died Tuesday at the Butner Federal Medical Center in North Carolina.
A spokesman for the prison said while no cause of death has been determined as of yet, Calabrese suffered from several ailments, including heart disease.
The former mobster’s body is expected to be delivered later Wednesday to the chief medical examiner’s office at the University of North Carolina where an autopsy can be performed.
Prior to his death, Calabrese was serving a life prison sentence for his involvement as a hit man with the Chicago Mafia.
Known as “the Outfit,” the most heinous of the Chicago mob’s crimes investigated were the 18 murders and one attempted murder that took place over the span between the years 1970 and 1986. Calabrese was blamed for 13 of the Chicago Outfit murders.
All of the murders and other crimes were allegedly committed to further the Outfit’s illegal activities such as loansharking, bookmaking and protecting the enterprise from law enforcement.
In addition to the jail-time, Calabrese was ordered to pay over $24 million, including millions in restitution to the families of murder victims.
Speaking on his father’s death, Frank Calabrese Jr. — who risked his life and secretly recorded Calabrese Sr. in prison as he bragged about mob murders — told Fox Chicago News he had “a lot of emotions” running through him.
“I believe he was taken on Christmas Day for a reason,” Calabrese Jr. said. “I hope he made peace. I hope he’s up above looking down on us.”