Kohberger mentioned fiber-free overalls, shoe covers, gloves ... "He said staging is common," Giacalone told Fox News Digital. "It's not common. You know, most of the things that happen at crime ...

The paper also details the equipment used for crime scene investigation, how to collect evidence, and how to enter a crime ...

The suspect in the killing of four University of Idaho students spent 12 pages describing how to process the scene of a stabbing properly.