Bryan Kohberger has admitted guilt in the slayings of four students at the University of Idaho. But the public still doesn't know what motivated Kohberger to commit the knife attacks and how he chose his victims in 2022.

Bryan Kohberger pleaded guilty Wednesday in the stabbing murders of four University of Idaho students after reaching a plea agreement for the 2022 killings. The deal stipulates a life sentence.

Goncalves’ parents – frustrated Kohberger dodged the death penalty as part of a guilty plea – shared harrowing new details about the undergrad’s final moments on their family Facebook