when he was shot dead at investor conference UnitedHealthcare CEO Brian Thompson was accused of insider trading and fraud before he was assassinated on Wednesday in Manhattan.
Thompson, 50, was shot dead in what NYPD officials believe was a targeted attack as he exited the Hilton hotel before an investor conference. His killer remains on the loose.
Last year the DoJ launched a probe into whether the private company of the nation's biggest insurer, led by Thompson, was unfairly restricting competitors and running a monopoly.
In May, the City of Hollywood Firefighters Pension Fund initiated a complaint against Thompson and other executives, accusing the CEO of failing to tell investors about the federal probe before he unloaded over 31 percent of his stock, taking in $15.1 million in proceeds.
In legal documents, the fund said Thompson and other company execs sold over $117 million worth of UnitedHealth common stock during the four- month period when insiders knew about the federal antitrust investigation but the public did not