In 1999, 47-year-old Sunday school teacher Miriam Illes is shot by a sniper through her kitchen window in Williamsport, PA. Convoluted evidence and anonymous handwritten letters throw them off the scent, but the killer is right under their noses.

In 1985, pretty 23-year-old new mom, Linda Brown, is shot dead in her bedroom, and her 14-year-old stepdaughter Cinnamon confesses to the crime. The case is as good as closed, but detectives suspect there's more to this twisted family than meets the eye, and they're right.

In 1996, 24-year-old Vietnamese-American graduate student Thien Minh Ly goes out rollerblading on the night of the Superbowl. He never returns and is later found stabbed on the Tustin High School tennis courts. There is almost no evidence, and the case runs cold until detectives catch wind of a letter revealing the shocking truth.

At 11:00 PM on July 9th, 2004, 27-year-old graduate student and young father Jarrod Davidson is shot by a high-powered rifle outside his apartment in Santa Barbara, CA; lying next to him is a suspicious potted plant. He was in the middle of a nasty custody dispute but the DNA doesn't match his ex-wife, Kelee.

In 1994, 55-year-old Newport Beach millionaire Bill McLaughlin is shot dead in his mansion. The emotional killing and keys found in the door indicate a killer in his close circle but it takes detectives 15 years to get to the bottom of this twisted case.

In 2004, 31-year-old Julie Keown dies of antifreeze poisoning in Waltham, MA. Detectives rule out suicide and accidental ingestion. Then, after untangling a web of lies, they turn to her husband, James, a popular radio host.

A Bronx, NY, house fire reveals a charred body inside. Police learn it's 20-year-old Kimberly Antonakos, and she's been burned alive. Was it her ex-boyfriend, Psycho? Or is her father connected to the mob? The truth is far more tragic.

An Orthodox Jewish mother finds her daughter strangled to death in their Staten Island home. Her Muslim ex-boyfriend had been stalking her. Computer techs uncover a dangerous online dating habit. But the real killer was someone much closer to home.

An Exxon oil executive goes missing in front of his New Jersey home. Police fear a medical emergency until a ransom note arrives from an eco-terrorist organization. As the case stretches on, the kidnappers' behavior grows more and more baffling.

A business owner is shot to death outside his Bronx office. Police find he was deep in debt. Did his wife kill him or the insurance money? Or did he arrange a hit to provide for his family? Their only hope to solve the murder is to follow the money.

When a woman is murdered in Milwaukee in 1981, her sons describe a masked man with a ponytail fleeing from the home, and police investigate the victim's rancorous ex-husband and a neighbor who claims his gun was stolen. Police make a shocking arrest, but some have doubts to this day.

When a single mother is stabbed to death in her home in Cape Cod, MA. The numerous suspects include her child's father, his wife, and her eccentric father's young girlfriend.

When an Orlando woman goes missing 15 years after the departure of her abusive husband, investigators wonder if her grieving children know more than they're saying.

It's a brutal scene when Karen Gregory is raped and stabbed in her boyfriend's Gulfport, FL, home. After Detective Larry Tosi enlists the help of his firefighter friend, George Lewis, to solve the crime, the case takes a shocking turn.

A maid finds a woman dead in Room 305 of an Oregon hotel. Her grieving husband reveals an open relationship - was an affair to blame? Or had this Ivy League grad fallen into a life of drugs? Then a prostitute comes forward with a shocking revelation.

A young pregnant woman is raped and bludgeoned in California. It looks like the work of a serial killer called "The Bedroom Basher." But when she regains her memory, she blames her husband. Is Kevin really the killer, or can DNA set him free?

Miami businessman Henry Diaz goes missing the night before a family vacation. His business success has earned him many enemies... even within his own family. But before police can figure out who killed Henry Diaz, they'll need to find his body.

Middle-aged couple Carmen Quinones and Ruben Frederick are brutally stabbed to death in their East Harlem apartment next to $16,000 in cash. Were they murdered for their money, or something far more personal?

A car pulls into a Long Island gas station with a mother shot dead in the front seat. Her husband claims a stranger shot her on the highway, but he's foggy on the details. Is this a case of deadly road rage, or does he know more than he's telling?

Two beautiful dancers are strangled in their West Harlem apartment. The case will lead cops all across New York City, where dreams of fame and stardom can drive young people to desperate measures, and devour them along the way.

27-year-old mother Dana Satterfield is found brutally raped and strangled in her South Carolina hair salon. Detectives soon discover they're chasing a dangerous killer who may not be finished.

A Belgian honeymoon comes to a tragic end when a freak car accident leads to a tragic death. The investigation takes police down a rabbit hole of violence and deceit, culminating in an international manhunt for a calculating killer.

Diane Girts is found dead in the bathtub of her home adjoining her husband's funeral home, and nobody can determine exactly how she died. As the case unfolds, detectives will uncover troubling clues pointing to a cunning and dangerous killer.

44-year-old masseuse Larissa Macriello vanishes from her Miami apartment in June of 2013. Police find there's a dangerous edge to her carefree lifestyle, and they're thrust into a web of sex, lies, and secrets as they try to find her.

In 1988, a Burbank couple is shot in their own home – husband Dan Montecalvo survives, but wife Carol dies in the hospital. The investigation will reveal a dubious past, and a scheming killer who almost got away with the perfect murder.

When Dallas mother Nancy Lyon dies of a mysterious illness in 1991, her wealthy father tells police she was poisoned by her own husband. But the case is far from closed, and the investigation will uncover family secrets with shocking implications.

California real estate developer Jana Koklich vanishes in the summer of 2000. Police suspect her job led her into danger, until a local pastor comes forward with a shocking confession. Someone is lying, but can detectives figure it out in time?

Wisconsin police are shocked in 2010 to find an elderly couple brutally murdered in their home. When family and neighbors start receiving death threats, police fear the killer isn't done. Can they solve the case before they strike again?

California student Julie Kibuishi is found dead in the bed of her friend, Sam Herr – a decorated war hero. But Sam is nowhere to be found. As police hunt for their prime suspect, they'll find this case is far more complicated than it first appeared.

New York City fashion photographer Joel Schoenfeld is shot dead in his Greenwich Village studio one cold January morning. Joel appears to have it all, but detectives will eventually uncover a dark secret and a twisted tale of revenge...

Film director Adrienne Shelly is discovered hanging by a bed sheet from the shower rod in her bathroom. It looks like a suicide, but her husband insists it was murder. And detectives are starting to believe him...

Daniel Ott is just one day from moving with his girlfriend when an intruder shoots him dead with a shotgun. A stunning coincidence will lead the investigation into the heart of one of the most dangerous criminal rings in the country.

26-year-old car dealer Christopher O'Brien takes a strange man for a test drive and never returns. Did O'Brien's criminal past finally catch up with him? Or is the truth something more sinister?

42-year-old Miami mother Raquel Calderin vanishes without a trace on her way home from work in 2012. The investigation will lead detectives deep into a disturbing family picture, and the truth will haunt them for years to come.

Robert Schwartz, a father of three, is murdered brutally in his own home - stabbed 32 times with an X carved into his neck. It looks like a ritualistic killing, but the investigation will uncover a killer much closer to home...

When 39-year-old Dawn Viens goes missing in 2009, her husband assumes she ran away to escape her problems. But the investigation will lead detectives to a most unexpected killer. They've heard of disposing of a body, but never like this...

Randy Scheffield's family finds him dead in his bed, and their first thought is a heart attack. But detectives will slowly uncover a murder conspiracy that will rock this small town for years to come...

Atlanta pre-school teacher Julie Love goes missing just a week after getting engaged to her boyfriend Mark. Detectives uncover numerous suspects, but the evil truth is worse than they ever could have imagined...

Star Washington Redskins safety Sean Taylor is shot dead by an intruder in his Miami home. And when it comes to the rich and famous, it seems like everybody has a motive...

Ann Anastasi returns home from shopping to find her husband, Anthony, lifeless in bed, a gun beside him. Police soon find a second victim, Jacqueline Riggs, in the basement, stabbed to death. What happened here is a dark tale of love, lust and violence.

The body of 20-year old student Sandra Bonaventure is discovered in a garbage bag, on the sidewalk in New York City. The trail of clues will eventually lead detectives to a cold-hearted killer, with an astonishing talent for deception.

The strangled body of 47-year-old mother, Joyce Aparo, is found off the side of the road 70 miles from her home in Glastonbury, Connecticut. The investigation will lead detectives into a dark world of abuse, sexual obsession and lies.

Jeffrey Locker, a 52 year-old successful motivational speaker, is found stabbed to death in East Harlem. Detectives first suspect Locker was in the wrong place at wrong time. The truth, they will learn, is far more complex and shocking.

A car races up to the ER of a Westchester hospital. Carlos Perez-Olivo, the driver, has been shot in his side and his wife, Peggy has been shot in the head. What horror has befallen this couple? The answer will challenge even experienced investigators.

After Christmas in 2003, on Whidbey Island off the coast of Washington State, Russel Douglas is found shot in the head, in his car along a deserted road. It's the start of a case that will take a decade to solve, and leave many with lingering questions.

In December 1998, Peter Theriault, 51, fails to arrive for his shift at a car plant in Commerce City, California. Pete hasn't missed a day of work in almost three decades. Friends and family immediately suspect something is very wrong.

Multi-millionaire Las Vegas real estate developer Ron Rudin goes missing. In order to find him, detectives will trace twisted a path filled with haunting spirits, dark obsession, and greed.

Hollywood "golden boy" Gavin Smith a 20th Century Fox executive and former star UCLA basketball player goes missing. For years, his family and detectives search tirelessly for answers, but a group of heartless characters holds fast to their secrets.

Marlin Barnes, a popular linebacker for the University of Miami and his friend, Timwanika Lumpkins, are beaten to death in Marlin's apartment. As detectives search for the vicious killer, the crime sends shockwaves through the campus and community.