Investigation Discovery continues its heritage of providing in-depth, compelling documentaries & series that challenge viewers to think about key issues that shape our culture and define our world.

Investigation Discovery

A series of murders puts the residents of a small town on high alert; as bodies continue to pile up, the urgency escalates, pitting Detective Dave Frankel in a race against time to capture a deranged spree killer before he claims his next victim.

American Detective With Lt. Joe Kenda

Twelve Hours of Terror

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Investigation Discovery continues its heritage of providing in-depth  compelling documentaries & shows.

After someone executes a charismatic New Hampshire businessman in his sleep, the case goes ice cold; detective Robert Freitas uses his wits and a wiretap to outsmart a deceitful associate who believed he'd long since gotten away with murder.

Homicide Hunter: American Detective

.44 Magnum

In rural Minnesota, a masked murderer bludgeons an entire family in their sleep; as small-town secrets unravel, Sheriff Mike Gormley uncovers a dangerous love triangle and a vengeful killer who is willing to risk his own blood for retribution.

The Line Goes Dead

Two employees of Dayton, a bar in Ohio, are beaten to death; on the case, Det. Doyle Burke investigates a series of bizarre clues, including a citywide KKK rally and a mysterious confession letter from The Devil postmarked from Hell.

A Letter From Hell

After multiple homicides occur along Virginia's Colonial Parkway, authorities task Det. Danny Plott with finding a serial killer; investigators uncover a pattern at the crime scenes about the killer's method, becoming the key to solving the case.

The Colonial Parkway Murders

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Lt. Joe Kenda showcases homicide detectives from across the United States who worked tirelessly to put killers behind bars and bring justice to victims.

S5 E7 | .44 Magnum