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.

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 farm foreman is killed in what looks like a deadly accident.

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.