His last days were spent celebrating the music and legacy of Jimi Hendrix with old and new friends "on the 2008 Experience Hendrix tour. For nearly 4 weeks, the tour traveled coast-to-coast bringing the music of Jimi Hendrix to nearly 50,000 fans across the country. In addition to Mitchell, the tour featured Buddy Guy, Jonny Lang, Kenny Wayne Shepherd, Eric Johnson, Cesar Rojas and David Hidalgo (Los Lobos), Aerosmith's Brad Whitford, Hubert Sumlin (Howlin Wolf, Muddy Waters), Chris Layton (Double Trouble) as well as Eric Gales and Mato Nanji (Indigenous). The tour ended 5 days before Mitchell was found deceased at appoximately 3 a.m. on November 12, 2008 in his room at the Benson Hotel in downtown Portland. Mitchell, 61, apparently died of natural causes, the Multnomah County Medical Examiner said."
Information courtesy Wikia.