After 23-year-old Ashley Kline is found murdered in a Pennsylvania wildlife preserve, investigators must piece together the last few moments of her life to determine who killed her.

After Jaime Lyn Larson is found murdered in her Portland, Ore., apartment on Christmas day, investigators learn the terrifying truth about her killer.

When 8-year-old girl is discovered strangled to death In Ocean Shores a local woman is instrumental in helping detectives catch the killer.

In North Carolina, a young woman's killer manages to keep the police guessing until he finally slips up.

Following a night out, a young woman ends up in a shallow grave, and her killer manages to evade police for several decades.

When a popular teenage boy is discovered stabbed to death in his Salt Lake City home, detectives leave no stone unturned as they attempt to find the person responsible.

A former actor is shot in Yuma and the police investigation has leads across the Southwest until they finally get their man.

After a young girl describes her mother's killer as being a ninja, police attempt to work out the truth behind the child's description as they put the murderer behind bars.

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.

The police make an arrest in the contract killing of a California businessman and they then soon realize that it's just the start of the story.

After a college freshman is found raped and murdered, a rookie police officer manages to catch her killer.

A man in Santa Monica who killed an art teacher evades capture for years as police use every trick in the book to try and catch him.

The lead advocate for the science of cold fusion ends up being beaten to death and investigators come up with a wide range of suspects, from corporate executives to burglars.