On Nov. 13, 2022, four University of Idaho students were stabbed to death in an off-campus house in a crime that sent shockwaves through the town.

With a series of “yes” replies to a judge, a man accused of killing four Idaho college students pleaded guilty in exchange for life in prison and no death penalty. But left untold so far: What motivated Bryan Kohberger to commit the middle-of-the-night knife attacks and why those victims?