Portland, OR)  --  Police are releasing the identity of a man whose body was found on a high school running track in Southeast Portland.  Police say 30-year-old Barak Rosen was found shot to death early Sunday morning on the track at Grant High School's temporary Marshall campus on Southeast 91st Avenue.  Investigators say he died of multiple gunshot wounds.  Police are calling the death "suspicious" and say they're still searching for a suspect.  KATU reports Rosen had just recently relocated to Portland from California to start a new job.