The 81-year-old nephew of Murder Inc. boss Albert Anastasia, due to begin a 30-month term for extortion, racketeering and arson May 10, fired two bullets into his heart Friday, the New York Daily News reported.
"It was a sudden death and his family is in mourning," Anastasio's lawyer, Paul Bergman, said, declining further comment.
Police say they found a suicide note allegedly written by Anastasio, a .22-caliber handgun and two shell casings.
Investigators believe Anastasio committed suicide rather than face jail, the newspaper said.
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