NBC True CRMZ

A wealthy doctor's wife was found dead on Valentine's Day. She had enemies, but he was a suspect regardless.

The murder of an art student from a small Texas town is investigated.

Investigators attempt to get to the bottom of a murder in an affluent, once-peaceful neighborhood.

The regrets of inmates are detailed via Scared Straight-type programs for teenagers and messages from prisoners recorded on personal video cameras.

Pensacola, Florida, New Year's Day 1985. The body of Tonya McKinley is found lying on the side of a city street.

Colorado Springs, Colorado, St. Patrick's Day 1987. The naked body of Darlene Krashoc is discovered by two patrol officers at 5.20am behind a restaurant.

A 17-year old girl arrives home in McCleary Washington and honks her car-horn. Her dad finds her distraught with duct tape around her mouth and her feet zip tied together.

How inmates treat first-timers and sex offenders.

Wedding preparations commence for a female inmate who's about to marry an alleged gang member, and an inmate is forced to choose between his crime family and his blood relatives in the series premiere of this look at life inside Suffolk County Correctional Facility in Riverhead, N.Y.

A husband is shot dead in his own bed. No one else in the house was hurt, not even his wife, who was sleeping beside him. Investigators were suspicious, but there were more surprises in store.

Steven B. Williams, a DJ with a golden voice, vanishes. The clue is wrapped in a napkin, tucked in a cabinet, hidden in a library.

A spotlight on a missing wife who was having an affair with a married guy.

A prolific bank robber is arrested; an embezzler vanishes; a stroke victim becomes an amnesiac. Also featured: the search for two teensagers who disappeared from a pyrotechnics display.

A wayward parolee harasses the FBI; a woman vanishes from a cruise ship; an alleged spontaneous human combustion; a psychic claims he can communicate with a dead sheriff.

An armoured-car robbery and a school bombing are featured. Also: A human skull is discovered beside a Mexican restaurant; a drug dealer is arrested.

A simian creature in Florida is examined; a man is arrested after murdering his whole family; evidence of reincarnation is explored; a suspected drug dealer becomes a fugitive.

A purported UFO sighting in Mexico City is explored; a suspect is charged with child molestation; two cases of abduction are probed; a body is discovered in the Chesapeake Bay.

A brother seeks a long-lost sister. Also: the Boston Strangler; two dead teenage runaways; speculations on the development of military aircraft.

Did Jennifer Corbin's desire to spend one last Christmas with her family lead to her murder?

After arguing with her new husband, Lisa Solomon leaves her home and vanishes into the cold night.

Could a killer's resentment of his family enjoying Thanksgiving together have lead to their murder?

Avis Banks is found dead in her garage. Police suspect that her fiance may not be all that he seems.

Toronto police are on the hunt for a serial killer who likes to dress up as Santa.

Police respond to a strange 9-1-1 call. Inside the home, they find seven people dead.

How inmates treat first-timers and sex offenders.

The 1959 rape and murder of 9-year-old Candy Rogers in Spokane, WA is solved six decades later thanks to DNA.

December 5 1982. Deputies from Jackson County Sheriff's Department discover the body of a female toddler along the Escatawpa River in Mississippi.

Michelle Wyatt is found strangled to death in 1980. Few leads arise until 41 years later, thanks to forensics.

A look at life inside Limon Correctional Facility, a state prison located in Lincoln County, Colo., opens with inmates flooding their cells and the work of a cell-extraction team.

A policy implemented by Limon Correctional Facility warden Travis Trini to limit the movement of inmates within the prison is examined.

A father from Georgia is accused of killing his ex-wife. The prosecutors are expecting his children will testify against him while his friends work on proving his innocence.

Two tenacious sisters determined to fulfill a promise investigate the mystery surrounding their mother's death.

Police re-open a homicide case, discovering a trail that may lead right to their own front door.

A serial killer's exploits are examined; a woman's ghost brings two co-workers together; a wife tries to kill her husband with a poisoned milkshake.

Poisoned cough syrup kills a woman; a man disappears while on a business trip. Also featured: a murder in a gated community in Greenwich, Connecticut; a car-insurance-fraud scheme.

Charred remains are found in a trash fire; voodoo becomes a medical treatment; a woman disappears during a business trip to Jamaica.

The Shroud of Turin is dated via scientific testing; a family keeps hope alive for a son who reportedly died in Vietnam; a woman seeks her biological father.

The crash of TWA Flight 800 is examined; a mysterious young woman haunts Chicago residents; two girls vanish following a terrible accident; robber siblings are sentenced.

A couple's love story turns dark when one partner is found dead. The surviving spouse faces suspicion as the truth unfolds in this gripping investigation.

After his neighbor is found dead, a tech giant flees the authorities and taunts them in the press. But the police soon begin to doubt whether they're following the right man.

When Todd Winkler was arrested for killing his wife Rachel, he claimed self-defense. Investigators learned Rachel wasn't the first Mrs. Winkler to die and traveled cross country to understand what happened on that camping trip a decade earlier.