Yes. This committee, several years ago, heard, either in person or in written briefs, from at least two witnesses describing the symptoms that Clayton Matchee had been experiencing in the weeks prior to the killing of Shidane Arone. He had been actively hallucinating, having visual hallucinations of, for example, camel spiders in the bunker, in the moments before he killed Shidane Arone; of a fang-toothed monster at the foot of his bed, as he was home with his wife Marj in the weeks prior to the killing. This man was floridly psychotic in the days and weeks prior to the killing of Shidane Arone, and his psychosis almost certainly arose as a direct result of the misuse of mefloquine.
On May 1st, 2019. See this statement in context.