1- James McDougal - Clintons convicted Whitewater partner died of an apparent heart attack, while in solitary confinement. He was a key witness in Ken Starr's investigation. 2 - Mary Mahoney - A former White House intern was murdered July 1997 at a Starbucks Coffee Shop in Georgetown .. The murder ...happened just after she was to go public w:th her story of sexual harassment in the White House. 3 - Vince Foster - Former White House counselor, and colleague of Hillary Clinton at Little Rock's Rose Law firm. Died of a gunshot wound to the head, ruled a suicide.