ABC News sat down with Idaho State Police Lt. Darren Gilbertson, the lead detective in the Idaho murders case, after Bryan Kohberger was put behind bars for life.

In the days after murdering four University of Idaho students in an off-campus home, Bryan Kohberger’s behavior shifted dramatically and investigators would later find that he had fixated on news coverage of the killings and began paying for items in cash – often wearing gloves – as he avoided the area of the murders.

Bryan Kohberger faced emotional statements from victims' families in Boise courtroom, including scathing rebukes and one offer of forgiveness before receiving life sentences.

Though the motive behind Bryan Kohberger's violent attack remains unknown, the former police chief says "new information could come out still."

Kaylee’s sister Alivea Goncalves delivered a blistering takedown of Kohberger at sentencing, demanding the slouching psycopath ‘sit up straight’ as she spoke directly to him

More than 300 documents released by the Moscow Police Department on Wednesday revealed grisly new details about the 2022 murders of four University of Idaho students and the exhaustive investigation that led to Bryan Kohberger's apprehension.

Bryan Kohberger, the former Washington State University criminology Ph.D. student, was sentenced to four consecutive life terms without parole on Wednesday for the November 2022 murders of University of Idaho students Kaylee Goncalves,