Yeah, the only things tree-huggers kill are humans. They certainly wouldn't sacrifice animals.
It's probably not voudoun, because I don't think California has many immigrants from the Carribean, but Brujeria, which is a fairly native from of Mexican witchcraft.
I was thinking Brujeria, but I couldn't remember the name. On another note, it
could have been a group calling themselves
satanists. Every now and then, groups of wackos think it'd be great to take every cliche in the book to heart and try and raise Baal or something equally as stupid. From what I've read, these same idiots piss off "real" Satanists almost as much as Druids get PO'ed at neo-pagan tree huggers.
Or for that matter, most Christians with Jack Chick and Benny Hinn.