celebrity gossip: AnnaSophia Robb Prays For Her Alma Mater, Arapahoe... December 14, 2013 Get link Facebook Twitter Pinterest Email Other Apps celebrity gossip: AnnaSophia Robb Prays For Her Alma Mater, Arapahoe...: Almost a year after the horrific school shooting at Sandy Hook Elementary, 18-year-old Karl Pierson opened fire at Arapahoe High School i...