Dash cam video from a traffic stop on Interstate 10 is a key piece of evidence in the investigation of an alleged celebrity stalker.

A Loxley police officer stopped 34-year-old Robert O'Ryan in the early morning hours of March 19th. The officer noticed O'Ryan swerving in the west bound lanes near exit 44.

During the 29 minute stop, O'Ryan told the officer he was driving to Los Angeles to marry an Olympic gymnast he had never met.   The officer, not knowing who Shawn Johnson was, wrote O'Ryan two traffic tickets and sent him on his way.

Five days later, O'Ryan was arrested trying to sneak into CBS studios in LA where 17-year-old Johnson was rehearsing for Dancing With The Stars.  According to police, O'Ryan had two loaded guns, duct tape, zip ties and love letters to his idol.

News Five's Jessica Taloney appeared on CNN's Nancy Grace Thursday night to talk about the case.