A Hawaii doctor stands trial for allegedly attempting to murder his wife with a rock on a scenic hike, with his wife now testifying against him. In Mississippi, a man faces retrial for his daughter's boyfriend's murder with silver coins as key evidence. Plus, 15 years after an Iowa realtor's death, an arrest is made, and a realtor shares safety tips for the profession. An anesthesiologist accused of attacking his wife on a hiking trail claims self-defense while prosecutors argue he was motivated by jealousy over her emotional affair with a coworker. In a Mississippi retrial, prosecutors rely on silver coins found in the defendant's car and his daughter's testimony that he confessed to killing her boyfriend.