More from KUOW How We Live After Tragedy In Marysville, The Search For Why KUOW | By Ross Reynolds Published October 27, 2014 at 1:25 PM AKDT Twitter LinkedIn Email Listen • 4:42 KUOW Photo/Deborah Wang Hundreds gather at the Marysville-Pilchuck High School gym to mourn the shooting that took place last Friday. Ross Reynolds speaks with Dr. Peter Langman, author of "Why Kids Kill: Inside the Minds of School Shooters," about how communities search for explanations after a school shooting.