Expert testimony reveals John O'Keefe's DNA found at crime scene in Karen Read murder trial

The Karen Read murder trial is ongoing, with the prosecution expected to rest its case soon. Read is accused of hitting her boyfriend, Boston police officer John O'Keefe, with her SUV and leaving him to die in the snow. Testimony has focused on evidence found at the scene, including O'Keefe's DNA on Read's taillight. Experts have testified about DNA matches and phone records linking Read to O'Keefe. Defense attorneys have questioned the evidence presented by the prosecution. The trial is expected to conclude by the end of June, with potential defense witnesses being evaluated by the judge. Karen Read, 44, from Mansfield, Massachusetts, was dating O'Keefe at the time of his death.