Authorities say a series of items were purchased from FCA for union labor leaders to curry favor with the UAW amid contract negotiations. Marchionne was pictured several times over the years at events with UAW leaders, including a well-publicized hug of former UAW President Dennis Williams.
Marchionne died July 25 and never was charged in the scandal, though charges potentially could have included making a false statement to investigators and violating a federal labor law barring employers from giving union officials money and valuable items, The Detroit News said.
Holiefield, who died in 2015, has been implicated in the scandal. His widow, Monica Morgan, pleaded guilty to one count of failing to file a tax return. She was sentenced to 18 months in prison in July.
Alphons Iacobelli, FCA's former labor relations chief, is scheduled to be sentenced Aug. 27. He is the highest-ranking company official charged in the scandal to date.
Five others are charged: former FCA financial analyst Jerome Durden; former FCA employee Michael Brown; ex-UAW Associate Director Virdell King; UAW official Keith Mickens; and Nancy Johnson, a former top aide to ex-UAW Vice President Norwood Jewell, who was charged with misusing funds but has not yet been arraigned. Jewell has been implicated in the scandal but not formally named as a conspirator by investigators.