 Sentencing has been ordered for a man convicted in the killing of his fiancée. John Carter pleaded guilty to involuntary manslaughter charges in Butler County last month in the death of his fiancée, Caitlin Markham. Carter reported Markham missing from her Fairfield home in August of 2011 with her remains discovered in a remote area in Indiana nearly two years later. He was sentenced yesterday to serve three years in prison.