In Karen Read’s murder retrial, a first responder testified that Read repeatedly stated, “I hit him,” after her boyfriend, Boston police officer John O’Keefe, was found dead in the snow in January 2022. Prosecutors allege that Read struck O’Keefe with her SUV following a night of drinking, leading to his death from hypothermia and blunt force injuries. Read, who has pleaded not guilty, is facing multiple charges, including second-degree murder, and her defense argues that the investigation was flawed and witnesses colluded.