Forensic Factor

A serial rapist stalks elderly women for nearly 20 years before escalating to murder.

A sniper targets abortion doctors and then disappears. When the sniper's mission moves to murder, a city is thrown into blind panic that spreads across the country and beyond.

A killer on the rampage hides within a group of Goth youths.

Top criminal investigators, forensic scientists and behavioral analysts track three serial killers.

Sex workers are being hunted down and discarded in remote wooded areas by a serial killer. On each victim's head, police find his calling card - a plastic bag with an ironic Smiley Face.

Two undertakers are shot and killed while at work at a funeral home in a small Wisconsin town. The case goes cold after two years.

Officials look to state-of-the-art DNA analysis to help capture a serial killer in the Louisiana State University area of Baton Rouge.

On the outskirts of Hamilton, Ontario, a jogger makes a gruesome discovery - the partially mummified remains of a human body.

Profiling the California arsonist, John Leonard Orr.

Police must use forensic science to solve the mystery of a prominent businessman whose burnt body is discovered in Las Vegas.