Members of our AFT Connecticut-affiliated local unions representing educators and support staff in Newtown Public Schools relive the Sandy Hook massacre with each school shooting headline. Yesterday's incident in Texas closely mirrors their own horror, in which six of their colleagues and 20 of their students were in December, 2012 slain. Trent Harrison, a science educator at the town's high school and president of our Newtown Federation of Teachers, captured his colleagues' emotions in an open letter to the nation: