Jimmy Hoffa Agreement. He played a major role in the growth and development of the union, which eventually became the largest (by membership) in the United States with over 2.3 million members at its peak, during his terms as its leader. Hoffa became involved with organized crime from the early years of his Teamsters work, and this connection continued until his disappearance in 1975. He was convicted of jury tampering, attempted bribery and fraud in 1964, in two separate trials. He was imprisoned in 1967 and sentenced to 13 years. In mid-1971, he resigned as president of the union as part of
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