Question: What was the name of Reverend Martin Luther King Sr's wife that was shot and killed in the Evenezer Baptist Church, six years after the assassination of her son, Martin Luther King Jr.?
{'answer': 'Alberta Williams King', 'supporting_facts': [['In the Hour of Chaos', 0], ['In the Hour of Chaos', 1], ['Alberta Williams King', 0], ['Alberta Williams King', 1]]}