One March morning in 1999, 14-year-old Leanne Marie Hausberg walked out of her Brooklyn home and was never seen again. ABC7 New York's Kristin Thorne, determined to help the bereft family, reopens the cold case, following key clues.

When young Chelsea Michelle Cobo vanished in 2016, her mother became a private eye of sorts, uncovering her daughter's secrets and imperiling her own safety along the way to get to the truth.

A cheerleader from small-town Pennsylvania vanished after becoming trapped in a sex-trafficking nightmare in NYC. Her desperate mom confronted dangerous pimps as surprising clues emerged on social media. Now, ABC7 New York's Kristin Thorne is on the case.