text:  The jury in the high-profile case of a woman accused of running over her boyfriend, a Boston police officer, and leaving him to die appears to be struggling. In a note, jurors told the judge they've been unable to reach a unanimous verdict in the second-degree murder trial of Karen Reed. The Norfolk County judge did not accept their claim, ordering them to continue deliberations after lunch, saying this is just the fourth day of deliberations in a complex case.