&nbsp;By Mark R. Day &nbsp;&nbsp; A few years ago, fellow filmmaker Paul Espinosa and I began documenting the life of Ramon &ldquo;Chunky&rdquo; Sanchez, whose folk band, Los Alacranes (The Scorpions), has become legendary over the past 40 years, not only in San Diego, but throughout the Southwest. &nbsp;&nbsp;&nbsp; What impressed us was not only their [...]