 leading to continued deliberations. But after a second note, the judge thanked jurors for their service and decided a mistrial. Reed is accused of purposely backing into her boyfriend, John O'Keefe, a Boston police officer with her SUV during a night of drinking in January 2022 and letting him die in a snowstorm. She pleaded not guilty to the charges, including second-degree murder. It's now up to prosecutors to retry the case. Derek Dennis, ABC News.