"The FBI Files" reveals the crime-busting techniques and forensic science used by the FBI to solve the most baffling cases. Hosted by former head of the FBI's New York Office James Kallstrom.

The FBI Files

S2, EP10 "Crime Spree"

A man and his common-law wife go on a three-month killing spree that leaves eight people dead before they are apprehended by agents.

The FBI Files

S2, EP3 "Hired Gun"

A murder-for-hire plot takes the lives of a woman, her 8-year-old child and a live-in nurse.

The FBI Files

S1, EP1 "Polly Klaas: Kidnapped"

How the FBI used forensic evidence to confirm the presence of a suspect in the bedroom of 1993 kidnapping victim Polly Klaas.

The FBI Files

S1, EP5 "Killing Spree"

After surviving an attack, a victim helps the FBI close a six-month investigation into the abductions, rapes and murders of 10 Florida women.

The FBI Files

S4, EP13 "The Coffee Shop Murders"

A man kills three coffee-shop employees.

The FBI Files

S3, EP9 "Deadly Business"

While investigating a gas station mogul, agents uncover an operation stamped with mob brutality, kidnapping and retaliatory killings.

The FBI Files

S1, EP8 "The Murdering Cowboy"

When Claude Dallas, who poached desert wildlife, killed two game wardens, he evaded the law by living off the land.

The FBI Files

S1, EP4 "Death in Alaska"

A killer's cleanliness leaves evidence of his participation in the sexual assaults and murders of a woman and her two daughters.

The FBI Files

S4, EP12 "Evil Intent"

A young woman is snatched from her home on a bright spring morning.

The FBI Files

S3, EP17 "No Remorse"

When the body of a suspected drug courier is found burning in an alley, FBI agents and local police uncover a crime ring run by a ruthless drug lord.

The FBI Files

S1, EP4 "Death in Alaska"

A killer's cleanliness leaves evidence of his participation in the sexual assaults and murders of a woman and her two daughters.

The FBI Files

S2, EP5 "A Stranger in Town"

FBI labs enable investigators and agents to identify a victim and establish what her activities were before she died.

The FBI Files

S1, EP1 "Polly Klaas: Kidnapped"

How the FBI used forensic evidence to confirm the presence of a suspect in the bedroom of 1993 kidnapping victim Polly Klaas.

The FBI Files

S4, EP6 "Unlawful Flight"

Transported prisoners flee from a sheriff's department.

The FBI Files

S1, EP2 "The Crazy Don"

Vincent "Chin" Gigante, the alleged Genovese crime boss, was brought to justice in spite of his eccentric behavior, such as roaming Greenwich Village in his pajamas and slippers.

The FBI Files

S1, EP12 "John Gotti: Convicted"

A determined team tracked the flamboyant crime boss John Gotti, who assumed control of the Gambino crime family in 1985.

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