After bubbly high school senior Kathy Chou goes missing, detectives delve into her past relationships and even her own family history.

In Phenix City, Ala., residents are shaken after a 20-year-old woman is found shot to death on the edge of town.

No one hears from Lisa Stukey for weeks, and her decomposing body is found inside her Idaho Falls, Idaho, home; police realize Stukey has been beaten to death and set out to catch the culprit who has ties to the victim.

In Webster Plantation, Maine, Mike and Valerie Miller are found shot dead in their own home, and authorities must consider a list of suspects that includes their own family members.

Brittney Cosby and Crystal Jackson are an ambitious couple living in Houston, then their lifeless bodies are found near a dumpster; authorities comb through the evidence until the identity of their killer is revealed.

Rob and Brenda Andrew, a devout couple living in the Bible Belt of Oklahoma City, find their world shattered when both of them are shot during a violent home invasion; the mastermind proves to be closer than anyone imagined.

Happy couple Bill and Mary Yoder run a medical practice outside of Utica, N.Y., but their world collapses after Mary falls ill, and detectives prove that her illness is no accident.

Firefighter William Walker and his new wife, Uloma, live in a tight-knit Cleveland neighborhood, then he is gunned down in their driveway, turning everyone in his life into a suspect.

Stephanie Shea Graham, 20, is found murdered on a desolate road; detectives gather clues and question suspects, and when the truth is finally revealed, the identity of her killer will prove to be more shocking than ever imagined.

When wife Tabatha is found stabbed to death at home, a steamy affair and many double lives are revealed to the town's unsuspecting residents.

An entrepreneur is fatally gunned down in his warehouse, leading detectives to examine his disgruntled employees and his mistress in search of the killer.

The double homicide of a beloved local couple rocks a tight-knit community, with friends and neighbors looking at those closest to the pair as their potential killer.

Etta Jean Westbrook is a longtime resident of a quiet suburb in Bryan, Texas; when she is found murdered inside her home, detectives question her loved ones and canvass the neighborhood in order to catch the killer.

The holiday season between Thanksgiving and New Year's is often thought of as a celebratory period to spend time with friends and family. That is not always the case, though, as the period is not immune from experiencing the same types of violent crimes that occur throughout the year. This series documents stories of tragedy that struck during the holidays, with firsthand accounts from people who had friends or family members killed during the joyous time. Sometimes the victim is killed by someone close to them, such as a case of sibling rivalry turned deadly, but sometimes the killing is done by a stranger who interrupts a holiday gathering with gunfire.

Hundreds of homicide cases in any given year can shake even the staunchest cities and police departments to the core. The statistics, however, don't paint the real stories and the effect that lingers -- through the pain endured by victims' loved ones, the community impact, and the memories that detectives will never forget. "Homicide City" explores unforgettable murder cases from major American cities, investigations that had law enforcement banding together across metropolitan landscapes in a sequence of manhunts. Each story is told by veteran homicide detectives, local reporters, and the victims' families.

Raw, unbridled and chilling depictions of human desires surface in "In Ice Cold Blood." True crime is depicted at another level as Ice-T takes viewers straight into the stories. Money, sex, lust, and greed run rampant with very real consequences. Family members, friends and detectives recount each case -- a missing military veteran, a student murdered in a crime of passion, and secret payouts are only some of the cases. These stories are told through re-enactments, in-depth interviews and archived footage.

"Accident, Murder, or Suicide" investigates the deaths that are just a little bit too mysterious. It explores the unbelievable true stories in this hourlong program. Each episode retraces the investigation from the start to the end. Investigators take viewers through the twists, turns, and unexpected surprises as they dissect the red flags, show evidence, and point out the strange behavior that puts everything into question.

A deadly teen rivalry. A scorned lover willing to kill. A quick-rich scheme gone bad. The true-life mysteries detailed in this series are about revenge, betrayal and murder carried out by the people seemingly most trusted by each of the victims -- their lovers. The cases, dramatized via re-enactments, focus on the criminal's motive, and explore how the victim and lover met, the deepening relationship, the perceived betrayal and the obsession that led to the deadly act. Each hourlong episode takes viewers though all of the twists and turns that culminate in arrests, verdicts and justice.

Once dubbed "Wonderland" because of its immense summer beauty and grandeur, the rolling mountains and deep forests of the Pacific Northwest become a haven for a series of murders. Using stylized re-enactments and interviews with law enforcement personnel and family and friends of victims, episodes focus on a team of dedicated Portland, Ore., homicide investigators who seek answers to mysterious, disturbing murder cases. In the premiere, Det. Molly Daul realizes she is dealing with a sexual predator, whose chilling confession remains with Molly to this day. The killer then turns his sights on her, raising the stakes even higher.

There's a reason murder investigations don't begin with preconceived notions. Sometimes those least expected to be capable of committing such dark deeds -- respected role models and trusted members of the community -- can have a sinister side. "Unusual Suspects" documents baffling, challenging investigations, actual cases that were anything but cut and dry. Episodes feature in-depth interviews with leading law enforcement personnel combined with stylized re-enactments, illustrating how illusive offenders evaded capture for years before being undone by persistent police work.

"Betrayed" reveals chilling stories of chasing the American dream and how the veneer can dramatically crumble, ending in murder at the hands of a trusted family member, co-worker, lover, or friend. The cases of deception are told through the lens of the fictionalized, first-person perspectives of the victims. As investigators, family, and friends peel back the layers and facts of each case, the otherworldly narrator already knows where the trail ends. The narrator guides viewers through various relationships, raising suspicions about who will commit the ultimate betrayal.