Unusual Suspects

A 40-year-old mother disappears from her home in the middle of the night, and police chase multiple leads before coming up empty. Almost a year goes by until they investigate a very unlikely suspect - a high-school neighbor with an affinity for older women. Then, a teenage boy is murdered in his home and detectives believe his campaign against teen gang activity led to his death. But the community is horrified when police arrest one of their "model citizens" for ordering the hit.

A young boy is killed in the middle of the night, and his own mother is convicted of the crime. Years later, an author investigates a convicted murderer for her upcoming novel, and gets a confession that re-opens that case file and eventually, sets the mother free.

A judge and his wife are slain in their home, and the suspects range from common criminals to politicians.

A wealthy widow is slain, and the victims records provide the means to find her killer.

A series of California fires puts investigators on the hunt for a serial arsonist. After years of dogged investigation, an unpopular theory points to a disturbing culprit.

In rural Wisconsin, a local eccentric is murdered in his home; A serial killer targets the elderly in Lake Elsinore, California.

A young woman disappears after a flat tire makes her pull over; a man is murdered while minding his neighbors property.

In 1985 when welder Danny Paquette is killed in his front yard by a long-distance rifle shot, there is no shortage of suspects. Many people had issues with Danny. But ultimately the solution falls much closer to home than anyone expected.

In 2004, affluent Coral Gables couple, John & Susan Sutton, are attacked at home. Susan doesnt survive. Investigators look at an adulterous business partner and an angry client before cell phone records lead to a shooter with ties to the family.

In 1984, terrifying screams pierce the Florida night. A day later, a womans body is found, stabbed to death. Detective Larry Tosi faces a host of suspects, but when the killer is caught, no one will be more shocked than Tosi himself.

In 1985, an LA County Sheriff is gunned down in his vehicle. Investigators drill down the slain cops list of enemies with no results. In 1999, a multi-agency task force shines a new light on the old case, illuminating a culprit who defies belief.

Soon after Mardi Gras in Mobile, Alabama, an 18-year-old freshman is found shot to death in the woods behind campus. Detectives take a hard look at several suspects, but thirty years go by before a stunning confession cracks the case.

Season 3 premiere. An attack on a Pennsylvania family that left only one survivor is discussed.

The murders of three Arlington, Texas, teenagers in 1985 and the subsequent homicide investigation are discussed.

Investigators in San Diego search for a serial killer after six females are slain in 1990.

The hunt for burglars who killed a Lafayette, La., man the day after Hurricane Katrina hit the Gulf Coast is chronicled.

Examining a cold case involving a San Diego postal worker who was murdered in 1972.

The 1980 murder of a California businessmans wife is detailed.

The 1980 murder of a Colorado teenager is investigated.

The murder of a Southern Illinois University student is investigated.

An elderly couple are murdered in their Oregon home.

In Portsmouth, Va., a 16-year-old ballet dancer is assaulted and murdered in her home, and detectives must investigate her family members as well as her circle of friends.

A video tape surfaces after a naval officer is raped and stabbed suggesting the victim may have been silenced to prevent a scandal.

When a beloved matriarch is found murdered, her friends and neighbors come under suspicion as detectives investigate the first homicide in the small town of Hubbardston, Mich.

An elementary school teacher goes missing after her first day at a new job, and investigators sift through clues to uncover the heartbreaking truth behind her sudden disappearance.

In La Jolla, Calif., telemarketing manager David Stevens charred body is found in his burned-out car, and detectives encounter a rogues gallery of suspects while looking for his killer.

In 1988, a 9-year-old girl goes missing in Great Falls, Mont.; the case goes cold until a chance encounter at a bus stop breathes new life into the investigation and leads to the horrifying truth behind the girls disappearance.

The murder of a popular young woman in Lancaster County, Pa., is investigated.

The strangulation death of an 8-year-old girl in Ocean Shores, Wash., is investigated.

A friendly night out ends in a shallow grave for a beautiful young woman and her killer evades police for decades.

Like in one of his old Hollywood westerns, a former actor is gunned down in Yuma, AZ and police chase leads across the Southwest until they finally get their man.

The police manage to track down the killer of a disabled Denver woman and they attempt to establish whether or not she was killed for money or if there was a more personal motive for her death.

When a first-year college co-ed turns up raped and murdered, it takes a freshman cop to beat the odds and catch a killer.

The leading advocate for the controversial science of cold fusion is beaten to death and investigators run the full gamut of suspects, from corporate executives to drug-crazed burglars, to find his killer.

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