Maybe this girl had just dropped her friends off at their home, or maybe she had been travelling and stopped for gas. Maybe she was visiting a sick relative at the hospital, woke up and decided to leave for her home. Don't just assume this girl is somehow "bad" because she was out at 4am. This attack could have happened at any hour, and by your comment I hope she doesn't somehow feel she is to blame for being at a gas station in the middle of the night and that its her fault this sick jerk commited a crime against her.