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A child's memory, a diary and a forensic psychologist help investigators solve a young woman's murder.

Forensic Files

True Lies

When a healthy young man dies mysteriously in his sleep, toxicology tests reveal that it may have been foul play. Could a `suicide note' hold the key to solving the case.

Letter Perfect

New York police hunt the Zodiac killer after a series of deadly attacks.

Sign of the Zodiac

A woman is killed weeks before testifying against the man who sexually assaulted her.

Nailed

An 11-year-old girl is sexually assaulted and shot twice at close range.

Sphere of Influence

A chip of stainless steel brings a killer to justice 20 years after a woman's body is found in a ravine.

Bound for Jail

Officials probe the death of a woman investigating the possible side effects of the drug she was prescribed for bipolar disorder.

The Big Chill

A homicide detective claims his wife accidentally shot herself in the head, but the evidence indicates otherwise.

All the World's a Stage

A search in Virginia's DNA databank reveals the identity of a news producer's murderer.

Breaking News

A rare gun and a victim's beloved dog help investigators trying to solve a multi-year long murder case where most of the witnesses were admitted drug users.

Hair of the Dog

A couple's murder leads investigators into the world of white supremacists and a string of hate crimes.

Brotherhoods

A man tells police he shot an intruder who murdered his wife; forensic evidence leads police to re-examine the man's motives.

A Welcome Intrusion

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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.

S8 E15 | Sign of the Zodiac