Unusual Suspects: Deadly Intent

An infant left in a sweltering SUV is the only sign of a missing mother.

Police investigate the murders of a married team of entrepreneurs.

A woman turns up dead in the basement of her newly purchased house.

In Summit Township, Michigan, a mother is stabbed in her home.

A murder of a girl and the disappearance of an ex-soldier lead to a shock.

A recent law graduate goes missing weeks before the bar exam.

An unthinkable murder and miraculous story of survival take shape in Texas.

One woman is killed and her friend hospitalized in two separate attacks.

A mother's body is found in the bath in what police think is an accident.

A mother of three children is stabbed in her home in the middle of the day.

A couple is gunned down in their home in the middle of the night.

A teenage girl is missing for a month before being discovered murdered.