Dan Moldea has been an independent investigative journalist specializing on organized crime and political corruption investigations since 1974, as well as a best-selling author who has published eight nonfiction books: "The Hoffa Wars" ( 1978); "The Hunting of Cain: A True Story of Money, Greed, and Fratricide" (1983); "Dark Victory: Ronald Reagan, MCA, and the Mob" (1986); "Interference: How Organized Crime Influences Professional Football" (1989); "The Killing of Robert F. Kennedy" (1995); "Evidence Dismissed: The Inside Story of the Police Investigation of O.J. Simpson" (with Tom Lange and Philip Vannatter, 1997); and "A Washington Tragedy: How the Suicide of Vincent Foster Ignited a Political Firestorm" (1998). He recently published his memoir "Confessions of a Guerrilla Writer: Adventures in the Jungles of Crime, Politics and Journalism" (2013).