Don't know about the stone mentioned....

but i was once at a lecture where Tony Dodd was speaking, his point of interest is animal mutilation..

http://www.crowdedskies.com/tony_dodd_animal_mutilations.htm

Not sure myself though...but anyone doing this must be a sad bag o shit.

No doubt these heinous bastards think of themselves as powerful, real cool, and above it all.
I hope they are caught and do hard time. I doubt their fellow inmates will be very impressed with their 'satanic' bullshit.