PHILADELPHIA -- It's happened to all of us: you're on the train or waiting in line for coffee when suddenly every phone within earshot starts howling. You've heard that noise before, and you know ...

In January 1996, 9-year-old Amber Hagerman was abducted and killed in Arlington, TX. Her body was found 4 days after she went missing.

That’s how long it took for 9-year-old Amber Hagerman to be abducted after leaving her grandmother’s home to ride her bike. The Texas girl’s body was found four days later in a creek bed a few miles ...

Last Wednesday marked 20 years since Amber Hagerman was kidnapped and murdered, but the person behind her disappearance and death still haven’t been identified, NBC News reported. Thousands of tips ...