Crimes Of The Century

For 23 days, John Allen Muhammad and Lee Boyd Malvo terrorized the Washington DC-Baltimore area in a coordinated shooting spree that killed 10 people.

In 1980, Mark Chapman shot and killed John Lennon in front of his Manhattan apartment building, hours after the former Beatle had autographed an album for him.

What drove a Texas mom to do the unthinkable and drown her five small children in the bathtub of their Houston home?

In 1981, a gunman shot President Ronald Reagan, sparking confusion at the White House and an urgent investigation to find out if it was a wider plot.

In 1995, a decorated war veteran carried out an attack that killed 168 people at an Oklahoma City federal building.

In 2007, Amanda Knox, a US student living in Italy, was arrested for the murder of her roommate. The evidence was disturbing but the DNA was inconclusive.

One of the worst debacles in law enforcement history: an inferno in Waco, Texas, killed 80 people, including four federal agents.

"The Unabomber” Ted Kaczynski engaged in a nationwide bombing campaign, planting or mailing 16 homemade bombs to unsuspecting victims.

From the DC sniper attacks to John Lennon's murder, a look at eight major news events that were shocking at the time and had far-reaching repercussions.