After Gun Violence, School Principals Rely on Others Who've Experienced that Same Trauma Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email In a Feb. 29, 2012 file photo, Helga Davies pauses after placing a basket of flowers at a memorial in front of Chardon High School in Chardon, Ohio. ( AP Photo ) Produced by GBH, PRX and WNYC Studios