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Johnia Berry is stabbed more than 22 times in her Knoxville, Tenn., bedroom while her male roommate escapes. Investigators can’t fathom how this young man evaded Johnia’s fate. Will a years-long investigation reveal the true killer?

A teenager awakes to discover her father, a popular high school drama teacher, stabbed to death in his bedroom. Questions are raised about whether she truly didn’t hear his desperate final struggle, and if his biggest secret made him a target.

In an upscale high-rise in Chicago, a successful businesswoman is murdered as her boyfriend sleeps beside her. Investigators point a finger at the boyfriend, but an exhaustive investigation uncovers the surprising architect of her murder.

A mother is shot to death while her young daughters lay asleep in the same room; baffled investigators wonder if an open door invited an intruder in, or if the killer is someone else she trusted who has been in the house all along.

A third-grader wakes up to a nightmare, finding his mother stabbed nearly 40 times in her bed. The police suspect those closest to her as their investigation uncovers the shocking evil that crept inside her house that night.

A young teacher’s assistant is raped and fatally shot in the middle of the night. Her roommate, awakened by the noise, calls 911 and reports it as a suicide — beginning an intriguing mystery of motive, heartbreak and a tragic discovery.

In small town Arkansas, as his wife sleeps nearby, a larger-than-life personality is silenced when a killer fires a single bullet to his head. Is his wife a cold-blooded spouse, or could a jealous neighbor have had a hand in this homicide?

A violent break-in at Christmastime turns a festive home into a horrific crime scene. Though her throat is slashed while sleeping, Anita Yunk survives but her husband isn't so lucky. Detectives must untangle a cross-country drama to find a killer.