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

48 Hours on ID

The Detectives Wife

Jessy Kurczewski calls police to report that she found Lynn Hernan dead in her recliner; the toxicology report shows a toxic ingredient in Lynn's blood and the authorities take a closer look at Jessy.

Death by Eyedrops

The Conspiracy to Murder Jennifer Dulos (P)

Investigation Discovery HD

Intruders shoot wealthy jeweler Ted Shaughnessy at his home in Austin, Texas; investigators wonder if it was a random attack or a robbery gone wrong; as they dig deeper, police suspect it wasn't a stranger killing at all.

Shootout at the Shaughnessys

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S20 E23 | The Conspiracy to Murder Jennifer Dulos (P)