Chris Herren, who played for the Denver Nuggets and Boston Celtics, struggled with substance abuse most of his basketball career, but he has been drug-free and alcohol-free since August 1, 2008. After getting sober Herren created The Herren Project, a nonprofit organization dedicated to providing treatment navigation, mentoring programs and education to raise awareness of the dangers of substance abuse. He travels around the United States and will be at Wilton High School’s Clune Center on October 21, 2014 (395…