Sun Prairie police are trying to find out how an 84-year-old woman managed to get outside an assisted living center where her body was found.  Her name hasn’t been released.  Police confirmed she was a resident of Faith Gardens Memory Care Center in Sun Prairie.  Investigators say there were no apparent injuries to the body when it was discovered Friday morning.  She was apparently killed by the cold temperatures, but an autopsy will be done by the Dane County Medical Examiner’s Office to be sure.