In December, investigators located Mr. Kohberger at his parents’ home in Pennsylvania. On 27 December, while they were there over the winter holidays, the police managed to remove some rubbish from the house and sent a DNA sample of Mr Kohberger’s father for testing. The results showed a strong likelihood that the elder Mr. Kohberger was the father of the one who left the DNA on the knife sheath.
In a pre-dawn raid on 30 December, the police broke down the windows and doors of the family home and arrested the younger Mr. Kohberger. They quickly searched her apartment in Pullman, the white Hyundai Elantra she had driven with her father to Pennsylvania, and her parents’ home. He also got a court order to obtain a DNA sample directly from Mr. Kohberger.
Friends of the victims are exploring possible links between the victims and the accused killer – so far, none have been disclosed – and Mr Kohberger’s classmates at Washington State University have been examining his memories to try to identify clues. Is.
Some said Mr Kohberger had spent time studying the exact kinds of techniques police used to identify him in recent weeks, and he had a keen interest in criminal psychology and crime scenes.
Benjamin T. Roberts, a fellow graduate student at Washington State, said Mr. Kohberger was interested in fields such as psychology and rational choice theory, which suggests that criminals may often try to assess the potential costs and benefits of committing crimes.
“He took his field of study very seriously,” Mr. Roberts said.
But colleagues also said that he became the cause of controversy many times in the program. Mr. Roberts recalled that Mr. Kohberger was more forceful and gracious in challenging the views of female students during discussions in classroom settings.
“There was a consistent pattern in which he pushed back more with female partners than with male partners,” he said.
A new revelation in the court affidavit had a tinge of irony: After enrolling in a Ph.D. program in Washington State in August, Mr. Kohberger applied for an internship. In an essay as part of the application, he described his interest in helping rural police departments collect and analyze data as part of public safety operations. The internship he applied for was with the Pullman Police Department, whose officers would help investigate murders.
Kirsten Noyce And Susan C. beach Contributed to research.
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