Beyond Reasonable Doubt

In 2002, armed with DNA and a license plate from a particularly violent rape case, a detective thinks he has an easy case to crack. But neither provides a match. The case goes cold until the groundbreaking 'Combined DNA Index System' finds a hit 5 years later, kicking off an epic hunt for the culprit.

In 1986, the LAPD arrive at a murder scene. They're certain it's an open and shut case, but the case quickly goes cold. It takes 20 years, and the advent of DNA testing to provide a stunning new lead: the original investigation had searched for a male killer... but DNA reveals it wasn't a man, it was a woman.

In 1996, a bomb goes off at the Atlanta Olympics killing one and leaving hundreds injured. After a further 5 bombs are detonated, the FBI, ATF and GBI realize they're dealing with a serial bomber. The Agencies use every tool at their disposal – even NASA scientists – to help bring the bomber to justice.

In 1995, charred bones and a skull with five bullet holes were found inside a burnt antique trunk in the Nevada desert. Despite the full arsenal of cutting edge forensic tools at investigators' fingertips, it was a method first developed in the era of Sherlock Holmes that helped convict the killer.