Watch videos about Gianni Versace and his tragic murder.

Watch videos about Kim Jong-un.

Watch videos about Robert Kennedy.

Watch videos about Hank Aaron and other baseball players.

Watch videos about Abraham Lincoln, 16th President of the United States.

Watch videos about Amanda Knox.

Watch videos about the Menendez Brothers, Lyle and Erik.

Watch videos about Hugh Hefner and how he turned 'Playboy' magazine into a worldwide empire that played a role in the sexual revolution of the 1960s.