It's one of the most infamous and unsolved mob murders—notorious mobster Bugsy Siegel is gunned down in his Beverly Hills living room.
On April 3, 1996, a CBS news report announces the arrest of Theodore Kaczynski, the Harvard graduate who was suspected and later proven to be the Unabomber. Kaczynski terrorized the country for nearly two decades with a series of mail bombings that killed three people and wounded 23.