Bryan Kohberger prosecutor Bill Thompson theorized that it was possible the Idaho Four killer had been at the scene of the crime before the night of the murders. On November 13, 2022, Kohberger, 30, brutally murdered Ethan Chapin,

One of the four University of Idaho murder victims, Xana Kernodle, likely interrupted her killer, Bryan Kohberger, as he was attacking the first two students, according to the lead investigator.