Mother of 10-year-old girl who died by suicide turns grief into a warning for other parents over nighttime cell phone use

Roanoke, Virginia — As a 10-year-old, Autumn Bushman loved to perform. The fourth-grade cheerleader from Salem, Virginia, was a bundle of energy.

"She really turned my living room into a dance floor," her mother, Summer Bushman, told CBS News. "She never sat still...She really did care about others more than she cared about herself."

But for the past couple of years, Summer says Autumn was bullied in school over her braces. The abuse also continued after school on her smartphone.

On March 21, at the age of 10, Autumn died by suicide at night in her bedroom. Records show she was looking at her phone's screen just before it happened, Summer said.

Summer told CBS News her daughter would take her phone to bed at night.

"I had questioned that a couple of times, and she fought back and sai