RIP Bob Biniak, Jay Adams, Shogo Kubo, Chris Cahill

As of April 2016, at least four of the original Z-boys have passed on:

Bob Biniak, died in 2010 (http://articles.latimes.com/2010/mar/04/local/la-me-bob-biniak4-2010mar04)

Jay Adams, died in 2014 (http://www.hollywoodtake.com/jay-adams-dead-53-what-happened-original-z-boys-skateboarder-dogtown-video-53560)

Shogo Kubo, died in 2014 (http://www.dailymail.co.uk/news/article-2669833/Pioneering-skateboarder-Shogo-Kubo-54-dies-paddle-boarding-Hawaii.html)

Chris Cahill (didn't appear in the documentary because his whereabouts were unknown, but he passed away in 2011. http://espn.go.com/action/surfing/story/_/id/7055059/josh-persoff-forms-surfer-addiction-recovery-group-wake-chris-cahill-overdose