According to law enforcement sources Jack Tocco allegedly became the official boss of the Detroit Partnership on June 11, 1979 in a ceremony held at the Timberland Game Ranch in Dexter Township. Apparently as a sign of appreciation for the support his father gave him and to show that they were united as a family Jack Tocco named his cousin Tony Zerilli his official underboss immediately after he was released from prison in 1979 after serving over four years of his prison sentence.