This undated photo provided by the Edmonton Police Service shows Travis Brandon Baumgartner, 21. Police have said Baumgartner is an employee of G4S Cash Services and is a person of interest believed to be one of several armored truck company employees who were at the University of Alberta around midnight Friday, June 15, 2012, where an early morning shooting left three armed guards dead and one in critical condition at a university campus. (AP Photo/Edmonton Police Service via The Canadian Press)