A freshman wide receiver at Maryville College in Tennessee is facing a charge of first-degree murder in the shooting of 16-year-old Emma Walker, a high school cheerleader. Knox County Sheriff’s Office officials said Wednesday that William Riley Gaul was arrested in connection to Walker’s death after she was found dead inside her house Monday morning, according to CBS News. Officials said evidence found at the scene indicated Gaul had fired shots into her bedroom from outside the home while she slept. Walker was a cheerleader at Central High School in Knoxville, Tennessee, the same school Gaul had graduated from. Walker’s aunt, Jenny Weldon, told the Knoxville News Sentinel that her niece had ended her relationship with Gaul weeks ago but he allegedly refused to accept it. “She had chosen to move on,” Weldon said.