David Begnaud

The case of 17-year-old Benjamin Elliott, whose defense team says he was sleepwalking when he fatally stabbed his twin sister.

After her husband is found with a fatal injury at the foot of the stairs, a woman is accused of murder and fights to clear her name.

After a wife calls 911 to report her husband missing, police discover his lifeless body in his car, parked inside a corporate parking garage.

A young woman mourns her uncle's murder … and questions whether the convicted killer was the only one involved. "48 Hours" contributor Nikki Battiste reports.

How police connected the murders of two young women to a man known as a zombie-fighting comic book hero. "48 Hours" correspondent Peter Van Sant reports.

Investigators are locked in a 30-year game of cat and mouse with a child serial killer to find the body of 12-year-old Sara. "48 Hours" correspondent Erin Moriarty reports.