Valerie Dirks, Mario Scramuzza's sister, can't imagine the kind of "animal" that could do what Gian did. Families have been ruined and children will grow up without fathers because of the murder plot, she says.

A pregnant woman’s unexplained disappearance casts suspicion on a mysterious couple who recently entered her life.

Loretta Saunders' mother and father remember her as "joyful and happy." One of eight siblings, she was going to school in Halifax, and seemed to have a bright future ahead of her.

Mario Scramuzza was a devoted paramedic, and always 10-15 minutes early for work. So, when he didn't show up one morning, friend Lee Hinston went looking for him. Noticing Mario's living room was dissheveled, Lee called Mario's wife, Gina.

Their romance started as a "seductive fantasy," but ended with brutal murder and details that shocked and puzzled investigators, including polaroids of a penis and a bizarre cover story ...

Det. Allen Amick says detectives believed Chelsi when she said she bought Alex Turner's bizarre story of being a Department of Defense worker on a contract he didn't want to complete.

Police Lt. Tony Allen says Alex may have had financial motivation for his crimes. His parents may have represented an 'obstacle' to his continuing his drug-seeking lifestyle.

Chelsi says she still feels guilty about her involvement in Alex Turner's crimes. "What kind of person does that make me?" she says. "You can only be so naive."

A pair of outcasts looking for a home. A mysterious disappearance. A toxic relationship and a shocking act of violence.

When Chelsi met a "smart" and "kind" stranger at work, romance bloomed. It was short-lived though, as secrets came to light and police made a gruesome discovery.

Chelsi Griffin had dreams of being a pro soccer player. When she arrived in Myrtle Beach on a scholarship, she ended up having to wait tables in a strip club to make ends meet.

Sheriff Paul Monroe says the murder scene didn't look like a typical burglary, and that from the start, officers knew something wasn't right with Donna Roberts. Proving her involvement in the murder would be a process, though.