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

Investigation Discovery

A serial killer targets homeless people in Orange County, Calif., and a young man stands accused of murdering his family.

Devil Among Us

Blood Brothers

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Investigators discover two cases decades apart that are linked when a woman falls to her death in the Grand Canyon.

Trail of Blood

An armed stranger takes Deanna and her grandmother hostage two days before Christmas; as police in South Carolina piece together a brutal murder spree, they have no idea that the killer is close by holding a woman and her granddaughter hostage.

Bound by Murder

When detectives identify a brutalized body in the desert, they never expect she's one of many; three homicides are linked to convicted killer Phillip Jablonski, who records details of his killings in his grim audio diary.

Murder Diaries

A witness reveals the truth behind a sniper shooting on Alaska's busiest highway; a bombing in rural Alaska triggers a multi-state manhunt and uncovers a yearlong revenge plot that tests family loyalties and leaves a community reeling.

Fire and Ice

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Acts of revenge, serial killings and twisted webs of deceit leave communities in fear as revelations stack up to reveal real-life devils in disguise.

S1 E4 | Trail of Blood