(Portland, OR)  --  A former Portland Police officer is pleading guilty to assault and misconduct for an incident that happened during a demonstration.  Authorities say 52-year-old Scott Groshong was driving an unmarked van and saw Portland Skate and Snowboard Shop being burglarized.  He saw a man take an item and run across the street.  Groshong used the minivan to hit the man causing serious injury.  The incident was recorded on video.  Groshong didn't report the incident to a supervisor, in his police report, or to the Department of Motor Vehicles.  The judge sentenced Groshong, who's now retired, to three years probation, 80 hours of community service, and his state law enforcement license was revoked.