The staircase murder of Kathleen Peterson: What really caused her death?
A&E: Kevin McMunigal, professor of law, weighed in on the trail of Michael Peterson, convicted of murdering his wife, Kathleen, by pushing her down a flight of stairs—and how accepting a plea deal hurt his chances of a retrial. “Once he said ’I’m willing to accept a conviction,’” said McMunigal, “basically it’s over.”