BOISE, Idaho — The man charged with the stabbing deaths of four University of Idaho students has spent much of his teen and adult life consumed by a rare neurological disorder known as visual snow syndrome.
“He would talk about it, like, all the time,” Thomas Arntz, a former friend of Bryan Koberger’s in high school, told the Idaho Statesman in a phone interview. “The word that comes to mind is that he was neurotic about it, and talked about it relentlessly. I guess it truly bothered him to no end.”
Learning of the condition through Kohberger was the first time many people following the case had heard of the little-known condition. Even experts say they have a lot to learn.
