In the quaint city of Portage, Indiana, everyone starts pointing fingers when eight-year-old Sarah Paulsen is brutally murdered. Cops wade through hundreds of tips to try and figure out if her killer is a creepy local or a sketchy stranger.

When single gal Adele Curtis meets a terrible end in her Phoenix rental property, detectives delve into a series of suspects to find the killer. But when the search goes cold as a desert night, it takes the dawn of DNA to catch this murderer.

When a ten year-old boy makes a quick run to the store, he runs into a nightmare instead. A strange slew of suspects pops out of the woodwork, but when police zero in on the bad guy, his motive is more shocking than anyone can imagine.

On May 22, 2004 Baton Rouge millionaire Alan Waters is found shot to death inside his mansion. Police think his real estate business is to blame but they can't solve this deadly puzzle until someone close to Alan comes forward with the missing piece.

In Lanett, AL, things just aren't adding up when a beloved former teacher, and mayor's wife, is found dead in her home. Friends try to put two and two together, but they come up with zero reasons anyone would want her dead, and police are just as stymied.

When thirteen-year-old Texas City girl Krystal Baker is found dead off the banks of the Galveston Bay, investigators round up a herd of suspects. But with little physical evidence on the scene, it takes a dedicated detective to solve this case.

A New Jersey teenager dies shortly after visiting a nail salon.

A 1992 murder in Wantage, N.J., is investigated.

Investigating the murder of a single mom in Manchester, N.H.

A woman and her two daughters are murdered in Middletown, Pa., on Christmas Eve.

When the lifeless body of Christian Rojas is found battered, his friends in Bensalem, PA are beside themselves with fear. Detectives are on the hunt for a savage killer but are surprised that it's one of Christian's friends that has become a murderous foe

A 28-year-old nurse is killed in Joliet, Ill.

Investigating the death of a tourist in Nags Head, N.C.