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

Todd Kendhammer says his wife Barbara died in a freak accident when a pipe flew off a truck and smashed into the windshield of their car in 2016; a jury disagrees; looking into the available evidence.

48 Hours on ID

Mystery on County Road M

Investigation Discovery HD

Heidi Firkus calls 911 after her husband claims an intruder is breaking into their Minnesota home; Heidi ends up dead, and the case remains cold for 10 long years until a new investigator takes a fresh look.

Death at the Front Door - Who Shot Heidi Firkus?

On a 2019 TV game show, Tim Bliefnick said his biggest mistake at his wedding was saying, 'I do;' it was a joke at the time, but it didn't seem so funny years later when, amid a contentious divorce, his wife, Becky, is shot 14 times in her home.

The Game Show and the Murder

In Louisiana, Megan Parra's parents find the kindergarten teacher at home with a gunshot wound to her head; authorities rule her death a suicide, but her family alleges foul play at the hands of her husband.

The Suspicious Death of Megan Parra

After her husband dies of an apparent overdose, Kouri Richins writes a children's book about grief; she's charged with his murder.

The People v. Kouri Richins

Police find Tom Merriman's body in his driveway under a pile of trash and arrested his stepdaughter, Jade Janks; she claims she found him dead in her car, panicked and hid thebody but didn't kill him.

Jade Janks and the Secret Photos

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A series of non-fiction investigations that explore such themes as jealousy, murder and deceit.

S20 | The Suspicious Death of Megan Parra