For the first time in a while in the lengthy Karen Read trial, the day will start with a fresh witness. Attorneys did not telegraph who that witness will be. Judge Beverly Cannone on Thursday said

Witness testimony is continuing on Friday in the murder trial of Karen Read, who is accused of intentionally backing her car into her boyfriend, John O’Keefe, a Boston police officer, and leaving him for dead outside a Canton home during a blizzard after a night of heavy drinking.