Investigation Discovery HD

Veteran journalist Paula Zahn unravels criminal investigations by featuring the opinions of law enforcement officials, the families of the victims and the incarcerated, lawyers from both sides and first-time TV interviews with convicted murderers.

Chilling evidence found inside a quaint Utah bookstore brings the killer of its beloved owner to justice.

When 71-year-old Cindy Mudd goes missing, the Kanawha County Sheriff's Office turns to CCTV to retrace her movements; they follow a trail of footage to zero in on their suspects and reveal the shocking truth of what happened to Cindy.

A killer stalks California; the clues are scarce, until one victim gets away.

A killer stalks California; the clues are scarce, until one victim gets away.

When 12-year-old Naomi Jones goes missing, her mother sounds the alarm, triggering a massive search effort; when they discover her body a few miles from her home, a team of investigators sets out to find the killer.

The disappearance of 21-year-old Michaela MacVilla sets off a massive mobilization of law enforcement, led by state police investigators; it will require them to solve a complex mystery, by delving deep into the world of digital forensics.

A simple break in routine leads to the discovery of a murdered grandfather and a missing child; investigators must contend with a devious killer who's taken pains to cover their tracks to unravel this tragic tale of lies and betrayal.

The investigation into the death of Sarah Harris raises questions about the relationship between a doctor and his much younger girlfriend.

A nurse is shot dead in her apartment; investigators note unusual findings, raising doubt about whether it was a self-inflicted act or something more sinister.

The disappearance of 23-year-old Montana mom Jermain Charlo.

When a 10-year-old girl reports being held hostage by a family friend, negotiator Mike Newlin must earn the suspect's trust; in New Mexico, an assailant takes shelter inside a local tourist attraction, taking everyone hostage.

An ex-felon with an axe to grind takes his former lawyer hostage, threatening to detonate a bomb if he doesn't get justice.

An elderly man faking chest pains takes five EMT firefighters hostage at gunpoint; with a house full of firearms and an unwillingness to negotiate, officers believe he has a deadly plan in mind.

In 2013, Kira Steger goes missing after a date night with her husband at the Mall of America; after a shocking discovery in a parking lot, investigators fear foul play; they turn to mall security footage in the hopes of solving this mysterious case.

In Kentucky, 13-year-old David Oakley comes home to find his stepmother murdered and his 15-year-old sister Jenna missing; Police race to piece together a killer's video trail, only to uncover a brutal plot.

A woman's lively get-together at her local bar ends with a baffling murder.

In 2014, graduate student Tequila Suter is stabbed to death in her suburban Buffalo home; investigators' only hope of solving the case is to piece together a trail of CCTV across town and follow in the footsteps of a killer.

The discovery of a burned body sends police on the hunt for camera footage that may show the crime.

When a young Army veteran returns from war, his family is relieved to have him out of harm's way finally. But danger lurks closer to home when a brief encounter on a dating app leads to a devastating tragedy.

YouTuber Randy Stair wants to be the master of his universe, but he struggles to make friends in real life; when the lines begin to blur between his supermarket day job and his online fantasies, he looks for control wherever he can find it.

Insight into tragic stories ripped straight from the headlines, exposing the dark side of people pursuing beauty and fame.

Panic spreads at the Suncoast Playboy Club when an aspiring photographer turns up brutally murdered right after shooting the annual "Bunny of the Year" contest; the Playboy Bunnies fear their club is a target and that one of them could be next.

YouTuber Randy Stair wants to be the master of his universe, but he struggles to make friends in real life; when the lines begin to blur between his supermarket day job and his online fantasies, he looks for control wherever he can find it.