Motives & Murders: Cracking the Case

- Season 6

(2016)

When a pregnant 23-year-old Iowa woman is shot in her own bed, investigators must quickly determine if they are looking for someone with a deadly grudge against the couple or a more sinister culprit closer to home.

In Cleveland, a 14-year-old African-American girl is snatched off the street, assaulted and murdered on her way to school. Initially, detectives work the case 24/7. But it will take a lucky break and nearly 30 years before the culprit is behind bars.

On her last day as a high school freshman, a 14-year-old girl is brutally beaten and set on fire. The horrifying crime sends shockwaves through her California community and with a possible serial killer on the loose, investigators hunt for a monster.

Popular schoolteacher Marilyn Habian is shot in the heart in the basement of her Cleveland-area home. And years after the case goes cold, news of a potential prison confession leads investigators back to her front door.

A devout Mormon and popular University student, 19-year-old Brooke Wilberger is abducted from an Oregon parking lot in broad daylight. Police immediately launch a massive search and the story of the missing 19-year-old soon captures headlines nationwide.

A woman's body is dumped in an Orlando park. And as detectives connect the dots, a spate of seemingly random beatings, carjackings, and murders soon tells the story of a one-man crime spree.

While building their seaside dream home in Connecticut, Matthew Monahon discovers his pregnant wife Kelsey hogtied on the floor and clinging to life. And when she dies days later, a $300,000 life insurance policy casts him as the number one suspect.

The investigation into a woman's murder requires 15 years, a deck of playing cards and a lucky break before it can be solved.

It's a September morning in 1973, and Debra Dill's bludgeoned body is discovered next to her car in rural Maine. Her grieving community wakes up to a nightmare, but it will take nearly two decades before the killer is behind bars.

When the naked blood-soaked body of a young woman is found on the floor of her Orlando apartment, it's up to investigators to find her killer before he strikes again.