I think we should not jump to conclusions. Islamic terrorists are not the only ones who decapitate their victims.
True, but they are the ones who have established the benchmark. Now they have to live with being suspect. Goes with the territory.
They aren't --- and if this news didn't just follow the news of that family of four getting slaughtered, it might not be the first conclusion --- but it's likely something is going on in NJ and it's very possible the same killer(s) are involved with both events.