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Investigators on both sides of the Atlantic seek links between three homicides that look like professional executions.

Forensic Files

To the Viktor

A man becomes the prime suspect in his wife's death after forensic science raises questions about her apparent suicide.

High 'N' Dry

HLN HD

A serial arsonist was on the loose in Washington, DC. Each of the fires was started with the same type of incendiary device. The perpetrator was very careful, and seemed to leave no evidence behind... but there were clues in the ashes and it was up to forensic scientists to find them.

Hot on the Trail

The owner of a restaurant is killed; investigators uncover tales of debt and deceit, but the case remains open, until one detective gets inspired by an earlier episode of "Forensic Files," and looks for clues in an empty holster.

Murder on the Menu

With very little else to go on, investigators find that a show impression puts them on the right track to finding a killer in Lansing, Mich.

Sole Searching

A man is murdered in his sleep but no fingerprints are anywhere to be found; a shoe impression outside could lead to the killer.

Bump in the Night

Three seemingly unrelated deaths proved to be serial murders; the killer had been careful, he uses poison which had no taste or odour, fortunately for investigators, it also has a unique chemical signature.

Penchant for Poison

Investigators unravel a twisted tale of lust, greed and deception after a woman claims her husband was gunned down by intruders.

Sunday School Ambush

When a popular disc jockey is found murdered in a community garden, police swing into action; a sniffer dog and a blood spatter expert led police to the killer and he'd been much closer than they realize.

Garden of Evil

A teenager goes missing after an evening of horseback riding; her body is found a month later, three miles from her home; the killer unknowingly leaves a trace of evidence behind, tiny but unmistakable clues that pointed to him and him alone.

Material Witness

A young woman is found dead on a golf course in the Bahamas; the grass on that course is so distinctive that it had evidentiary value; the evidence leds police to two suspects; each blamed the other, and they have to find out who the killer is.

Moss, Not Grass

Two women are murdered in the same town and police fear a serial killer is on the loose, further investigation finds that they were both close to the same man.

Elemental Clue

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Retracing the steps of real investigations with interviews and dramatic re-creations as experts draw on forensic science to solve baffling crimes and other mysteries.

S10 E36 | Bump in the Night