Boston.com Karen Read retrial: Legal experts weigh in on what the new special prosecutor means for Round 2 “What this case needs, I think, is truly a reevaluation, a sort of soup to nuts reevaluation of, ‘Is it worth expending resources on another trial, given what happened before and given all of the evidence that might be favorable to Karen Read,’” said Daniel Medwed, a criminal law professor at Northeastern University.