Nobody seems to be sure about that. However, this morning the national news had a headline saying the deaths were being ruled HOMICIDES. Very strange.
Also a stark reminder to choose your gurus carefully, if you use them at all. Some clues I got in viewing the pictures of the place where it happened--a yin-yang symbol on a teepee. NOT a Native American symbol, so not very likely an authentic sweat. Also, just from the pictures with the story, it really doesn't look like a well-kept site. If they're careless about the grounds, it's possible that they're careless about far more important things.
Not to make light of the tragic events, but honestly--$9,000 for a sweat? Come visit me in Oklahoma in the summer (in August, typically lots of days over 100). You can warm yourself up for a lot less!
Last I heard, a few are still in hospital. Healing thoughts being sent in that direction.
UniqueSoul: Indeed, everything actually IS subject to the LOA.