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Pieces of plastic the size of sand hold clues to a bombing.

A university for the deaf serves as a haven for its students. But when a freshman is brutally murdered in his dorm, the student body is plunged into terror. When it happens again,

After a plastic surgeon and local musician is murdered in his Asheville, N.C., home, investigators uncover a trail of clues pointing to an unlikely killer; new details emerge from

A Dallas spine surgeon's God complex puts patients at risk, and it's up to fellow medical staff to blow the whistle before more innocent people are victimized.

Seventeen-year-old Anthony Templet calls 911, confessing to shooting his father in self-defense; with no signs of a physical attack, authorities suspect murder; as the investigatio

For the Jennings family, Christmas Eve becomes a waking nightmare after a gunshot rings out, and investigators must determine whether a secret led to suicide or murder.

When a young man with big dreams is found dead, investigators follow the money to find his killer.

After three ruthless murders and a month-long spree of armed robberies, police in Fort Worth, Texas, race to stop a young man intent on inflicting pain, his honor student sibling a

When two families in different neighborhoods are brutally murdered within a week of each other, the city of Richmond goes into an uproar; with only limited leads, police face mount

A retired police officer fears his missing daughter has been murdered, kickstarting an investigation where the killer appears to be one step ahead; a pair of twins hold a secret th

Chris Smith's family receives an email stating that he is leaving California to surf the world; months later, they wonder if he really left; Keith Morrison offers new insights into

When grandmother Erma Prince dies after a simple hip surgery, fears spread that a killer nurse could be responsible.

When a suburban mom is murdered in her own home, investigators chase down an elusive killer that no one saw coming.

Young mother Elizabeth Ferrell goes missing in Texas as a body is found in Louisiana; as detectives connect the dots between the two cases, secrets rise to the surface and reveal a

Kelly and Aaron Sam head to Lake Charles, La., to investigate the shocking murder of a young man gunned down in his car after attending church on Palm Sunday.

When a garbage bag containing a young woman's body is dumped in a NYC tunnel, Barbara Butcher and a rookie homicide detective unravel how a seemingly straightforward crime conceals