The disappearance of Kenia Monge; how her text messages led authorities to her abductor.

When Hannah stopped responding to her texts, no one knew that she had been abducted.

April never came home after walking the dog; she sent a cryptic text and disappeared.

How Beverly Carter's texts led her family and friends to realizing she was in danger and saved her.

During a massive search for a missing girl, her Snapchat turns out to be the key to the mystery.

TikTok influencer Nikki Kuhnhausen vanishes; how police used Nikki's Snapchat account to find her.

The dark details of a teen girl's frightening abduction and ordeal from those closest to her.

Becky Koster goes missing; her mother, Barbara, recalls the gut-wrenching search for her daughter.

Justina is attacked and taken away at gunpoint; April recalls what happened to her best friend.

Queena Phu goes to her local library; she is on her cell phone with Rachel, who hears Queena scream.