The one-time acting boss of the Genovese crime family was convicted of murder charges Friday in federal court in Manhattan.
Arthur Nigro ordered the killing of a Genovese Captain in 2003 as well as the attempted murder of a union official, prosecutors said.
Nigro ran the Bronx and Springfield, Mass. operations for the mafia group. US Attorney Preet Bharara said Nigro employed violence to further concentrate his power. Two Genovese associates were also convicted.
The conviction "takes some very dangerous men off the street," Bharara said.
Nigro was convicted of ordering the hit of Springfield mobster Adolfo Bruno in part because he believed Bruno had met with the FBI.
Nigro also ordered a hit on union leader Frank Dabado in the Bronx. Debado was shot 9 times but survived.
Mobsters Fotios Geas and Ty Geas were also convicted as being hitmen for Nigro.
All three mobsters now face mandatory life sentences.