SAN MATEO, Calif. /ScoopCloud/ -- Nationally-recognized advocate and best-selling author David Sheff will be the featured speaker at the 16th Annual Circle of Support Luncheon in Menlo Park on April 26, 2019. This annual benefit event, which is presented by the nonprofit organization Caminar and its Family & Children Services of Silicon Valley division, raises funds for local behavioral health and supportive services.