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On July 31, 1975, At 7:00 a.m. Hoffa's wife called her son and daughter by telephone, saying their father had not come home.
On July 31, 1975, At 7:20 a.m. Linteau went to the Machus Red Fox and found Hoffa's unlocked car in the parking lot, but there was no sign of Hoffa or any indication of what had happened to him.
On July 31, 1975, At 6:00 p.m., Hoffa's son, James P. Hoffa, filed a missing persons report.
On July 31, 1975, Hoffa's wife called the police, who later arrived at the scene. State police were brought in and the FBI was alerted.