In 1995, Mitchell and his wife Nancy moved from Los Angeles to Puako, Hawaii, where he founded the Horns. In 2010, Mitchell published his memoir, Lost, But Making Good Time: A View from the Back Row of the Band. According to his wife, he stopped playing the trumpet toward the end of his life, due to macular degeneration and hand problems from an automobile accident. Mitchell also suffered from cancer and died on May 11, 2013. He was survived by his wife and four children.