Bryan Christopher Kohberger, a 28-year-old criminology doctoral student, is suspected of murdering four University of Idaho students in November.
According to a former high school friend, Nick Mcloughlin, Kohberger underwent a personality change in the summer after their junior year, becoming aggressive and bullying people.
Mcloughlin said Kohberger also started taking boxing lessons and wanted to fight people. As a result, Mcloughlin and their friends stopped being friends with Kohberger.
Kohberger received a psychology degree from Northampton Community College in 2018 and later worked as a school security officer for several years.
He received a master’s degree in criminal justice from DeSales University in 2022 and was pursuing a doctorate at Washington State University when the murders occurred.
Kohberger’s DNA reportedly matches samples found at the crime scene.
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