Investigation Discovery HD

The terrifying discovery of human remains in suitcases along the rocky shorelines of Elliott Bay and nearby rivers in Seattle.

An unknown assailant strangles overnight desk clerk Mary Klatt during her shift; the town of Blue Earth, Minn., struggles with the harsh reality that someone would want to harm Mary.

A local in Algona, Iowa, stumbles upon a smoldering truck with the body of a young mother inside; investigators and family trace the last movements of Nicole Berte to uncover her killer.

A missing grocery clerk, 20-year-old Christina Ross, puts the town of Neenah, Wis., in a panic after a gruesome discovery; an unlikely resident comes forward with information that leads detectives to the people in her tangled love life.

A roommate reports 22-year-old Liz Syperda missing, shocking the community of Mount Pleasant, Iowa; some wonder if Liz merely left town without telling anyone, but family and friends know something far more disastrous occurred.

In June 2009, 61-year-old Wendy DiRodio's elderly mother discovers Wendy's body in the bedroom of their shared Ventura County, Calif., home; another murder weeks earlier leads investigators to wonder if a serial killer is on the loose.

When a home invasion leaves Bill Ross murdered in his sleep, detectives in Shelbyville, Tenn., scramble to uncover the identity of a pair of masked men; as they dig deeper, they discover a troubling web of secrets and lies.

A teenager sleeps through the murder of her father, Ken Eaton, at their home; as detectives probe into the beloved teacher's secret love life, they unravel a web of heartbreak, deceit and desire.

After Greg Fleniken checks into a Texas hotel, police find him murdered in his sleep; when the case runs cold, a Long Island PI joins the investigation and uncovers a chilling conspiracy that no one saw coming.

When Opal Skidmore marries Steven Williams, their love is a second chance for the pair to live out their dreams; soon, boredom and the lure of the open road spark hidden desires and sexual hijinks, leaving this open marriage anything but happy.

Corinne Stoudt gets a second chance at love with husband Calvin, then a too-close roommate and a monstrous past turn this second chance into a deadly battleground.

After a Fourth of July celebration, a young mother vanishes on a Northern Cheyenne reservation. As family launches a desperate search, a close-knit community unravels and investigators follow fragile clues to uncover what happened in her final hours.

Nurses Lara Crockett and Ricardo Muscolino meet on the night shift; he sets about creating a rich life for them, and she's happy to go along with it; Ricardo's scheming eventually drives Lara into the arms of another man with explosive results.

Corinne Stoudt gets a second chance at love with husband Calvin, then a too-close roommate and a monstrous past turn this second chance into a deadly battleground.

After a Fourth of July celebration, a young mother vanishes on a Northern Cheyenne reservation. As family launches a desperate search, a close-knit community unravels and investigators follow fragile clues to uncover what happened in her final hours.

Nurses Lara Crockett and Ricardo Muscolino meet on the night shift; he sets about creating a rich life for them, and she's happy to go along with it; Ricardo's scheming eventually drives Lara into the arms of another man with explosive results.

When Opal Skidmore marries Steven Williams, their love is a second chance for the pair to live out their dreams; soon, boredom and the lure of the open road spark hidden desires and sexual hijinks, leaving this open marriage anything but happy.

In San Francisco, Kevin Collins, 10, disappears on his way home, galvanizing the residents to find him; with few leads to go on, Kevin's case sheds light on hundreds of other children who have vanished without a trace in the United States.

After doting mother Cheryl Coker vanishes from Riverside, Ohio, numerous searches turn up nothing; as police take a closer look at the case, they uncover some disturbing information.

Jared Fogle weighs a life-threatening 425lbs, then invents a unique diet and loses 200lbs eating only Subway sandwiches; the company makes him their spokesperson catapulting him to stardom, but behind his lovable facade lurks a dangerous secret.

Radio journalist Rochelle Herman undertakes a covert mission to expose Subway spokesperson Jared Fogle as a child sex predator, but her investigation takes a dark turn; the lives of two young girls change when they encounter the Subway Guy.

Rochelle Herman's undercover investigation to expose Jared Fogle, aka the Subway Guy, as a child sex predator destroys her life; a bizarre and shocking sequence of events results in the downfall of this pop culture icon.

Nineteen-year-old Cooper dives into the LA lifestyle of TikTok viral videos, famous collaborations and content house parties; then Cooper sets up a Discord to talk about addiction and mental health with his followers, which exposes the dark side of fame.

Derricka is a self-made millionaire and businesswoman who is not ashamed to celebrate her success; when aspiring entrepreneur Ashley reaches out on Facebook asking Derricka to be her mentor, she has a hard lesson to learn herself.

Unpacking shocking true-crime stories involving influencers and digital communities across the social media landscape.

In Philadelphia, police make a horrific discovery 18 months after a woman goes missing; the police pursue the woman's killer, but he always manages to stay one step ahead of the law.

The morning of his anniversary, Mike Williams goes duck hunting; when he fails to return home, an all-out search commences, but it's only the beginning of a sordid mystery that will take close to 20 years to solve.

In 1998, a gifted Philadelphia graduate student is found murdered in her bed, triggering a hunt for her killer.

Lisa can't understand why her mom stays with her dad; he's cruel, unpredictable and violent; Lisa finds ways to cope, but what takes place is something she couldn't have imagined.

When Kristyn escapes her toxic home and rageful mother, she leaves behind her sister and grandmother; it's a decision that still haunts her.

Renee wonders why her brother, Ricky, targets her; thankfully, her oldest brother, Ronnie, protects her and keeps Ricky in check; after years of his cruelty, they've had enough of him and fight back; that's when Ricky plots his revenge.

Debra sees darkness in her young brother's eyes but hopes he'll change; when he attacks their stepmother and grandmother, she accepts his denial; when her brother becomes a notorious serial killer, she realizes her brother is a monster.

When she wakes from her coma, Melanie puts the puzzle pieces together; she had worked so hard to make her relationship with Tracy work despite his lies and abuse; when she reflects on their past, she realizes he's been trying to kill her.

The terrifying discovery of human remains in suitcases along the rocky shorelines of Elliott Bay and nearby rivers in Seattle.

An alleged serial killer lures teenage girls into his van, then murders them in the Washington wilderness; one girl survives.

When police find the lifeless body of a young mother, her husband becomes the prime suspect. However, when an in-depth investigation against him stalls, it raised a critical question: Had police been focused on the wrong man all along?

A beautiful young woman turns up savagely murdered in a bar parking lot; as investigators retrace her last known steps, several suspects who have possible motives are identified.

An alleged serial killer lures teenage girls into his van, then murders them in the Washington wilderness; one girl survives.