Yes, yes he is. I have seen many people who are adamant that DB/JI are responsible for Lisa's disappearance, and even THOSE people think that he is, YES, <modsnip>.
Everyone who has inserted themselves into this case are not necesarily kind, honorable people. I think we all know that. We are not supposed to talk about certain FB pages on here, but go look at some. Those people are NOT nice people. Some are, but some aren't. Some of them indeed appear to have a screw loose.
I look at some of the FB pages in the Aliayah Lunsford case. I firmly believe that her parents are responsible for that child being "missing". However, some of the people on those FB pages act inappropriately also. I may not "like" the parents in that case, but calling people the c word, a fat b*^%$, etc. etc. etc. is uncalled for. What does it accomplish? Nothing. It makes you look like a joke.