Schedule

A boy's toy Batmobile car provides an important clue for detectives struggling to make a case against a serial killer who stalks and kills waitresses. Then, a killer helps convict himself when he boasts about his crime to prison cellmates.

With access to the San Francisco Police Department's work, including saliva samples taken from letters the infamous Zodiac Killer sent 30 year ago, we reevaluate the case of the serial killer who began terrorizing California in the late 1960s.

Montana detectives track down a man who murdered his wife 25 years later after he's convicted of killing his third wife in Maine under similar circumstances; and after 15-year-old papergirl Penny Parker goes missing, a search volunteer finds her body.

Fifteen years after the murder of a Navy seaman, an undercover agent proves the wife had arranged a murder-for-hire; and a former state trooper claimed his estranged wife committed suicide.

The accidental discovery of a human scalp leads to the conviction of a man for murder 18 years after the killing.

A 13-year-old girl's mother is murdered and 20 years later she helps bring the killer to justice; and a dogged policeman gets to the bottom of the brutal murder of a 63-year-old newspaper delivery woman.

A heavily pregnant woman is viciously attacked by a woman obsessed with making the unborn child her own. A couple cling to the rafters of their home as Hurricane Ike unleashes its fury on them.

A dream vacation turns into a murderous nightmare for an 11-year-old girl when she is orphaned and left to drown on a sinking yacht.

A convenience store worker plays dead to escape her abductor. An endurance athlete faces her greatest challenge ever after falling 60 feet in a remote canyon.

A missionary working in Haiti is ambushed, shot and held for ransom by a gang. A tunneler returns to an underground shaft minutes after escaping to rescue two colleagues from the flooded cavity.

Hannah's best friend knew something was wrong when she stopped responding to her texts. No one knew that Hannah had been abducted by someone close to her.

When Deserae Turner didn't come home after school, her mother and friends began texting her incessantly. A massive search ensued, and 47 of her friends were questioned. Turns out her Snapchat may have been the key to the mystery.

April's mother recalls the day she asked her 14-year-old daughter to text her when she got home from walking the dog. April never did. Instead, she sent a cryptic text to her boyfriend and disappeared. What happened?

Travel Blogger, Carla Stefaniak, went to Costa Rica to celebrate her 36th birthday. But when she was to arrive back home to Miami, her awaiting loved-ones realized she never got on the plane.

Residents of small-town Robeson, Pennsylvania were stunned when 23-year-old Ashley Kline went missing on New Year's Eve. The gruesome truth rocked the community.

Rising social media Influencer Alexis Murphy was on her way to a hair appointment, but never arrived. When a photo of her abandoned car was posted on-line, her worried loved-ones knew something was terribly wrong.

A dead broke Florida man wins a $30 million lottery, and everyone he knows comes after him for a handout. He turns to his best friend to help him manage his money, but that's when things went sideways for these BFFs.

Can guys and girls ever really be best friends? It's a question Alphonze Fitzhugh and Britani Coberly hear many times--and they always shrug it off.

When LA native Stephen Eldridge needs a new place to live, he turns to his best friend, Miki McDermott. Stephen and Miki have a lot in common.

When retired rodeo champion Bob Huber takes a young, aspiring cowboy named Ryan Bryant under his wing, it seems like a perfect match. The two start running a business and coaching a little league team.

At a school for at-risk youth in Illinois, Sarah Kolb rules the hallways. She takes new student Adrianne Reynolds under her wing, showing her the ropes and introducing her to the popular crowd.

Two girls in Pennsylvania grow up the best of friends, but things get rocky when they take the next step and become lovers. Add a third girl to the mix, and this relationship turns downright toxic.