Christopher Howson, 50, called 911 in January 2013 and told the operator that he had just strangled his wife, Theresa Gorski.
Responders transported Gorski to Phelps Memorial Hospital Center, where she remained on a ventilator for four days but died when she was removed from life support, the district attorney said.
Howson pleaded guilty to first-degree manslaughter and first-degree strangulation in May.
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