In the annals of crime, perhaps no name evokes terror more than that Jack the Ripper. Although this anonymous killer committed his gruesome murders more than a century ago, his name lives on. This program goes to England to investigate the murder of five women, which took place in 1888 and have gripped the collective psyche ever since. Most frightening of all is the fact that murderer was never caught, or even identified. Criminologists present their theories on the identity of the infamous killer. Never-before-released photographs graphically display the vicious work of Jack the Ripper's knife