Question: Herb Metoyer is a Detroit-based singer-songwriter and novelist, best known for his folk music , he was an early mentor to, and lifelong influence on, Mike Taylor, who performed extensively with Henry John Deutschendorf Jr., an American singer-songwriter, record producer, actor, activist, and humanitarian, whose greatest commercial success was as a solo singer, known professionally as John Denver, died on which date?
{'answer': 'October 12, 1997', 'supporting_facts': [['Herb Metoyer', 1], ['John Denver', 0]]}