"Smith died on May 14, 2017 in a Rochester, Minnesota hotel room. He had checked into the hotel, which is near the Mayo Clinic, the day after speaking to the Wall Street Journal. Nine days later he was found with a bag over his head that was attached to a helium source. Medical records list Smith's cause of death as "asphyxiation due to displacement of oxygen in confined space with helium." Police discovered a suicide note by Smith that stated no foul play was involved in his committing suicide, and that he was in poor health and his life insurance policy was expiring."

-Wikipedia