A Portland police car ran over a jaywalker while he was being arrested Monday night.  When police tried to stop Jimmy Duffey, 31, he ran.  An officer caught up with him and had him on the ground and a backup officer arrived in his car.  When he got out, he forgot to put it into park and the car rolled over Duffey.  Sergeant Pete Simpson says Duffey was arrested on an outstanding warrant, and also charged with disorderly conduct and interfering with a police officer.