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With the coroner\u2019s inquiry underway, damning evidence reveals the nature of Diana Yeates and Dr. Eric Hedberg\u2019s relationship \u2014 but it\u2019s not enough to secure a conviction. The police\u2019s prime suspect walks away, leaving more than one mysterious death in his wake.\xa0\nLearn more about your ad choices. Visit podcastchoices.com/adchoices