Criminal Masterminds

Since the '70s, the United States has produced an estimated 1,400 serial killers -- double the combined total of the rest of the world. What causes a seemingly normal human being to engage in serial acts of murder?

Built on the backs of convicts, gold miners, and outlaws, Australia forged its freedom from the depths of the underground. Host Don Wildman explores a 19th-century prison that housed Sydney's most threatening criminals.

The deserts around Los Angeles were Charles Manson's home, and he hoped the city's underground would be his haven. But Manson and his followers weren't the only dangers lurking beneath the streets of LA.

From body snatchers and serial killers (including Jack the Ripper) to occult clubs and pagan rituals, Victorian Londoners lived by their own rules. See why London's streets ran red.

America's 1933-'34 crime wave is one of the most fascinating in history: an 18-month spree of robberies, killings, and kidnappings that shook the nation to its core and gave birth to a legendary roster of outlaws.

The executions of Nicola Sacco and Bartolomeo Vanzetti in 1927 ignited worldwide protest. To leftists, they were martyrs. To conservatives, they were anarchists. But were they guilty?