Question: What is the date of death of Mary Winkler's husband?
Sentence (from "Mary Winkler"): Mary Carol Winkler (born on December 10, 1973) is an American woman who was convicted of voluntary manslaughter in the 2006 shooting of her husband, Matthew Winkler, the pulpit minister at the Fourth Street Church of Christ in the small town of Selmer, Tennessee.
Relevant evidence: Yes