Although I have followed this case closely, I never had the heart to watch many of his videos (too sad for me), so I was not aware that he was into exploring abandoned houses (as per a poster above). That makes more sense to me now that he would decide to go down that chimney. However, it makes me a bit more angry that he was not found earlier, since all those agencies, including the FBI would know that he enjoyed exploring abandoned houses. Not that he could have been saved, but (I hate to say it) but his body would have been in better condition. This is one of the saddest cases, and I feel so bad for his family.