Trace of Evil

The attacks of the M25 rapist triggered one of the biggest man-hunts in British history. But, crime always leaves a trace, and forensic advances eventually led to his downfall.

The story of how the Pittsburgh Police and the FBI harnessed cyber forensics to locate missing 13-year-old Alicia Kozakiewicz who had been abducted by 38-year-old Scott Tyree.

The tragic story of a child, born into neglect, who was lost in the system, but found, thanks to the huge advancements made in forensic composites, reconstructing an identity through drawing.

This episode explores one of the longest running investigations in modern British history. It tracks the advances in forensic technology that eventually led to the murders being solved after 37 years.

The story of how police managed to stop a most unlikely killer, who appeared to be embarking on a bold crime spree, and how digital forensics, and good old fashioned police work led to arrest.

On May 31st 2002, Charlotte Murray Pace was found stabbed to death in her home in Sharlo, Baton Rouge. DNA evidence was so strong that the prosecutor decided to hang the whole case on it.

The story of how a deeply disturbed and twisted serial killer was stopped in his tracks by the tire mark he left at the scene of one of his crimes.

The body of Eastenders actress, Gemma McCluskie was discovered in the Regents canal in 2012. Dogged detective work and detailed forensic examination eventually led police to her killer.

Investigating the stabbing death of Lee Harvey, police were directed to two men believed to have been involved. Within days detectives suspected the killer was closer than anyone had first thought.

When a young couple was found executed in their home in October, 2015, at first there were no apparent leads. The murderer, however, had left crucial evidence behind.

A 1992 attack led to an investigation which would last nearly a quarter of a century. In time, the science of DNA profiling helped to close a case which detectives feared would never be solved.

When a box containing human limbs was discovered in Broward County, Florida, it kickstarted a multi-jurisdictional and multi-agency investigation that tested forensic capabilities.

When the bludgeoned body of Paul Gault was discovered lying in a pool of blood in an upstairs bedroom of his house, Northern Ireland police began to uncover the facts behind a brutal murder.

In 1988, 24-year-old David Jackson left his home in Pembroke Pines, Florida, to buy beer and cigarettes. He was never seen again. For 15 years his disappearance remained unsolved.

The case of the brutal murder of Lynette White which became the longest murder trial in British history and how familial DNA eventually led police to her killer.

September 1973, with three murders in just 3 months, South Wales Police realized they were looking for Walesí first serial killer. A twenty-eight year investigation finally uncovered the perpetrator.

The case of an Irish woman, Rachel OíReilly, her savage murder, and the groundbreaking investigation that put her remorseless killer behind bars.

The case of a brutal murder, a terrible injustice, and how a new, dedicated police team and DNA profiling eventually caught up with the killer, 40 years after the crime was committed.

The story of a barbaric murder and how smart police work and a broad forensic investigation not only identified the victim, but ultimately led to the people responsible.