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

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.

Gilbertson and lead prosecutor Bill Thompson opened up about their theories on who was targeted and the investigative process, including an interview with Kohberger. Gilbertson walked ABC News through the horror found at 1122 King Road on Nov. 13, 2022, where Kaylee Goncalves, Maddie Mogen, Xana Kernodle and Ethan Chapin were stabbed to death.

Prosecutors seek to extend Bryan Kohberger's no-contact order with victims' families for 99 years following his guilty plea in the murders of four University of Idaho students

Surviving roommate Dylan Mortensen addressed Bryan Kohberger in court, calling him a "hollow vessel, something less than human -- a body without empathy, without remorse."

The family of Kaylee Goncalves, one of the four University of Idaho students killed by Bryan Kohberger in 2022, railed against him as a “joke,” a “loser,” and “as dumb as they come” in a day of searing victim impact statements.