Knoxville, TN : Arrest made in hit-and-run that injured a student near South Doyle High School on Tuesday morning, November 11, 2014

A Knox County teenager was the victim of a hit-and-run Tuesday morning. The Knox County Sheriff's Office says a car speeding through a school zone at South-Doyle High School hit the student, 15-year-old Mallory Bigler, while she was walking in the cross-walk on Tipton Station Road. Officers arrested Dawn Renee Walker, 49, of Seymour, later that afternoon. They say Walker took off after the crash. Bigler tells Local 8 News she never heard a car coming. Witnesses say they heard a thud as she was hit. "I didn't even know what happened. I guess I must have blacked out or something, because the only thing I remember seeing after that was the black car," she says. Security cameras captured the whole thing. Officers say the driver didn't even slow down. "It kinda disgusts me, because they could have stopped, and then gotten out and been like 'are you okay?' But instead they were very selfish," Bigler says. After the picture of the car went viral on social media, the Sheriff's Office tracked it down and arrested Walker. "Six more inches and I could have been paralyzed or even killed," Bigler says. But this ROTC student is a tough one, not only brushing it off but marching in the Veteran's Day parade as she'd planned. "I just didn't want to let me fellow cadets down," she says. "I just felt I had to be there." And she has a message for all drivers. "People need to take into consideration school speed limits, because there are people who get hit and there are people who get killed," she says. Walker is charged with leaving the scene of an accident with injury, and driving without insurance. Source : Woman arrested in connection with hit and run near South-Doyle