Former lead singer Ron Tabak had tragically died as the result of a brain injury on Christmas Day, 1984. Mitchell continued to perform with Prism until 2006 when he left the group following a dispute with sole remaining core member, Al Harlow. Lindsay Mitchell has played as a member of "Trainwreck", an acoustic psychobilly vocal and instrumental group formed in 1985 by the late Billy Cowsill (of the legendary Cowsill family band), and upright bassist Elmar Spanier. Following Prism Mitchell was a regular performer on the Vancouver blues scene, notably with British blues legend Long John Baldry, and with St. Louis-born actor/musician, Jim Byrnes. Lindsay Mitchell is a graduate of the University of British Columbia and holds a BA in Political Science (1998), a master's degree in Adult Education (2002), and a PhD in Curriculum studies (2010). He also served as the Ombudsman of the Alma Mater Society of the University of British Columbia Vancouver (1998-2002). Mitchell now resides in Penticton, British Columbia.