Mancusi v. DeForte devoted much of their attention to the International Brotherhood of Teamsters (IBT), where Jimmy Hoffa had been allegedly working with organized crime figures to unseat Dave Beck as union head. It feared that if Hoffa led the Teamsters, the union would have enough power to disrupt the U.S. economy. The committee had focused on some of the paper locals Hoffa had purportedly created to stack votes in his favor during the leadership election. The officers of one, Local 266 in Manhattan, were nominally attempting to organize juke box and coin-operated game servicemen in the New York metropolitan area. District attorneys
Jimmy Hoffa arrived at the scene. State police were brought in and the FBI was alerted. At suppertime, Hoffa's son, James P. Hoffa, filed a missing persons report. Years of extensive investigation, involving numerous law enforcement agencies including the FBI, came to no definite conclusion. Giacalone and Provenzano, who denied having scheduled a meeting with Hoffa, were found not to have been near the restaurant that afternoon. Hoffa was declared legally dead on July 30, 1982. The case continues to be the subject of rumor and speculation. Hoffa's wife, Josephine, died in 1980. According to her children, she died of the grief