In 2009 he published his research on ten school shooters based on the analysis of the Columbine High School massacre , the Virginia Tech shooting , the Red Lake shootings , the Thurston High School shooting , the Parker Middle School dance shooting , the Westside Middle School shootings , the Heath High School shooting and the Bethel Regional High School shooting . Langman 's book '' Why Kids Kill : Inside the Minds of School Shooters '' has been translated into German , Finnish , and Dutch . When the book had been found in Munich shooter ’s home as well as in the Arapahoe High School shooter ’s home , a discourse began regarding whether the shooters had used the book as inspiration or for looking for a role model , someone to emulate
Bethel Regional High School shooting
Bethel Regional High School shooting
Peter F. Langman