I’ve listened to so many podcasts on this case. I have an idea about the “crystals” It was known that her husband had recently purchased a welding machine. The little boys stated they went were they crystals are (or close to that) I’ve been a nurse for decades and had many patients come in with flash burns to the eyes. It’s quit an impressive site seeing the “crystals” from burning metal. I think the little boys were seeing welding sparks.