Who is Ray Bronson from I Know What You Did Last Summer and what is their importance?

Ray Bronson is Julie's former boyfriend. Ray might have been the driver, who struck and killed the boy on the bike, and he wanted to return to the scene to see if there was anything they could do to help. Regardless, Ray agrees to the pact and runs away to California in a futile attempt to appease his feelings of guilt. Ray is the recipient of the third cryptic message: a letter in the mail that includes only a well-worn copy of the newspaper article of the accident.