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History Detectives Special Investigations

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Full Episodes

HDSI - Who Killed Jimmy Hoffa?

HDSI - Who Killed Jimmy Hoffa?

Notorious teamster boss Jimmy Hoffa disappeared without a trace in 1975. Was he murdered?

HDSI - Texas Servant Girl Murders

HDSI - Texas Servant Girl Murders

Before Jack the Ripper, a serial killer walked the streets of Austin, Texas.

HDSI - The Disappearance of Glenn Miller

HDSI - The Disappearance of Glenn Miller

In 1944, bandleader Glenn Miller boarded a plane for Paris and was never seen again.

HDSI - Civil War Sabotage?

HDSI - Civil War Sabotage?

The steamship Sultana exploded without warning one night in 1865, killing 1,800 people.