Greed

The 1985 murder of a corrupt stockbroker who swindled thousands of people out of their money is reopened after one of the dead man's protégés comes forward with new information, which he's willing to exchange for a lighter sentence now that he's in trouble with the law. He claims that shortly before the murder, he overheard one of the cheated investors threaten the broker, but the investigation reveals that several people wanted the man dead.