A Yucca Valley woman was placed under arrest Thursday after investigation of a baby brought to the hospital with severe head injuries. The Sheriff’s Department said on May 18, deputies responded to the home of Hannah Thompson, 21, in the 8600 block of Palomar Avenue in Yucca Valley with Fire Department personnel, after Thompson called 911 to report that her boyfriend’s five-year-old son fell from a stool at the home. The victim sustained significant head injuries and was airlifted to the Loma Linda University Children’s Hospital. Medical personnel believed the injuries to be suspicious for child abuse. After investigation, Hannah Thompson was placed under arrest for investigation of felony child abuse causing a coma.