Watch: Bryan Kohberger's Fellow Inmate Details His Unusual Behavior in JailBryan Kohberger's former classmates are shedding light on his possible motives for committing the brutal murders in Idaho. Months before fatally stabbing four University of Idaho students in November 2022, Kohberger received a master's degree in criminal justice at DeSales University in Pennsylvania-where his fellow students say he took a particular interest in studying mass murderer Elliot Rodger.