In the immediate aftermath of the 2009 Fort Hood shooting committed by United States Army psychiatrist Nidal Malik Hasan , Casey expressed concern about jumping to conclusions before the investigation was completed , telling CNN 's John King that " this increased speculation could cause a backlash against some of our Muslim soldiers " and " As great a tragedy as this was , it would be a shame if our diversity became a casualty as well . " Several months later , in a February 2010 interview , Casey said : " Our diversity not only in our Army , but in our country , is a strength . And as horrific as this tragedy was , if our diversity becomes a casualty , I think that 's worse . " Casey retired on April 11 , 2011 . Casey , whose parents were from Massachusetts , moved to Scituate upon his retirement . Casey is currently a Distinguished Senior Lecturer of Leadership at Cornell University 's Johnson Graduate School of Management as well as a teaching fellow at the University of Virginia ’s Darden School of Business
2009 Fort Hood shooting
2009 Fort Hood shooting
George W. Casey Jr.