When a beautiful young graduate student is found stabbed to death, detectives must determine if the murder was a crime of passion or a brutal attack by a violent intruder.

A beautiful grad student is found murdered inside a yoga apparel store. On the surface it appeared she was the victim of a botched robbery, but remarkable police work revealed a far more sinister plot.

A man is convicted of a murder he says he did not commit. Can he prove he was framed from behind bars?

Police race to track down the unlikely killer responsible for three terrifying murders.

The abduction of a young mother from a crowded hospital parking lot is the beginning of a terrifying mystery that will torment her loved ones for decades.

After a teenager's partially nude body is discovered brutally beaten in a desolate cemetery, Investigators and her family face an emotional journey to the truth behind her murder.

A mother and two daughters are discovered floating in Tampa Bay after a brutal triple homicide. Police must rely on a victim who survived a similar attack to bring the killer to justice.

A quiet Midwestern community is rocked by a gruesome triple homicide. The unspeakable tragedy robs one man of his mother, grandmother and 5-year-old son.

A woman relentlessly investigates her daughter's disappearance leading police to a terrifying string of murders.

Hillsborough County in Florida is in the midst of a horrifying crime spree with young women turning up dead every week. Teenager Lisa McVey's bravery helps to bring an end to a vicious killer's reign of terror.

A 54-year-old mother is shot in the head and stabbed. Solving this crime sends a district attorney down a horrifying trail of madness and terror.

The murder of 19-year-old Mischelle Lawless sent shock waves through Benton, MO. As the investigation unfolded, police zeroed in on 17-year-old Josh Kezer who has gang ties. Was he the one who pulled the trigger?

After a frantic 911 call in a Tampa suburb, investigators arrive to find a shaken Timothy Permenter outside the home of his girlfriend, Karen Pannell. The former model had been stabbed multiple times and police discovered the letters "ROC" written in blood on the wall next to her body. Would the victim's dying act point them to her killer?

Margo Prade, a prominent doctor in Akron, OH, is discovered shot and killed in her van parked outside her office. Margo was one of their own, married for 17 years to a highly respected captain in the Akron Police Department. Investigators quickly discover a videotape that documents the murder, but the most important clue is a bizarre bite mark left behind by the killer.

When Fran Smith mysteriously disappears her sister and daughter mount their own investigation... What they uncover sends police on a cross country man hunt for a killer.

When a young college student disappears out of a mall parking lot, police find themselves in a race against time to find her before it is too late.

A mysterious stranger ambushes a family as they pull into their driveway. Could the memories of a five year old girl be the key to solving the crime?

When a young woman’s body is discovered high in the San Bernardino Mountains, detectives must figure out who she was and how she got there before they can catch the cold blooded killer who murdered her.

When a teenager is found viciously murdered, police must retrace her last steps alive to identify her killer.

A wave of fear sweeps across Aurora, CO, after two similar crimes are committed just days apart, and police race to stop a hammer-wielding killer before he strikes again.

Can police find the killer of two teenagers discovered inside a car?

Police find a 22-year-old man shot to death in a deserted parking lot. Investigators uncover a possible motive for the murder. It appeared the victim, his middle-aged co-worker and a teenaged girl were involved in an internet love triangle.

A couple is gunned down in a savage attack while in Washington, D.C., and the killer leaves almost no clues. When another similar murder is discovered, the mystery starts to unravel and police are led to an evil beyond imagination.

A 20-year-old woman goes missing after a night out with friends, and police are baffled. The disappearance remains unsolved for a decade, until a cold case investigator and an undercover sting operation uncovers dark secrets that blow the case wide open.

In the span of 8 months, 3 young girls are kidnapped from their homes in Virginia and murdered. As police hunt for the killer, he strikes again, and a young girl's heroic actions crack the case.