The guy in the blue truck shot The girl that was in the white car and she wrecked and hit the red porche.
Caroline mom hires a secret agent investigate and find out who the killer was.
They found out that the guy in the blue truck was the guy who shot Caroline and he is her crazy ex boyfriend.
The person was that was investigating the situation she went to Judy's parents house and that's when Terry came around the corner and he seen the investigators car there and he turned around and ran so she had to chase him.
Terry was getting chased by the investigator and he couldn't stop on time and he hit another car head on and died in the same spot as Caroline.