Jennifer McCabe, a key witness in the Karen Read trial, finished testimony on Friday after several hours on the witness stand for cross-examination from defense attorney Alan Jackson in Norfolk Superior Court.

Jennifer McCabe is set to take the witness stand in Karen Read's second murder trial. Read pleaded not guilty to murder charges in the death of Boston police officer John O’Keefe and is facing a retrial after a jury was unable to reach a verdict last year.

McCabe was questioned about her recollection of the hours leading up to the death of Read’s boyfriend John O’Keefe and the moment his body was found lying in the snow.