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

Melissa Turner of Florida called 911, saying she had discovered her fiancé, Matthew Trussler, lying unresponsive near their swimming pool; he was pronounced dead at the scene in October 2019, but an autopsy later revealed he died from stab wounds.

48 Hours on ID

Melissa Turner's Closing Act

Millionaire mother Pam Hargan and her adult daughter, Helen, are found murdered in their northern Virginia home; the police tell the family her wound looks self-inflicted.

Death Hits Home: The Hargan Killings

In 1987, Terry Wood comes home to find his wife, Roxanne Wood, dead; investigators preserve DNA, but technological limitations of the time turn the case cold, until now.

The Unsolvable Murder of Roxanne Wood

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

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Diana Duve was last seen alive leaving a bar in Vero Beach, Fla., with her on-again, off-again boyfriend, Mike Jones; her mother knew something was wrong when Diana didn't call her, something she did every day.

S19 E24 | Where is Diana Duve?

E12 | Melissa Turner's Closing Act

E11 | Death Hits Home: The Hargan Killings

E5 | The Unsolvable Murder of Roxanne Wood