It makes me wonder. This guy was a teacher so that means it would have been fairly easy for him to get the permit to have them in new York.
While it does not excuse what he did, new York laws really do suck when it comes to a lot of things. While there is a way to get permits to own vemnous reptiles and the big pythons, its rare that they grant them. Even if the person has the skill an know how to take care of them.
For all that we know this guy has the skill an know how to correctly care for them and may have been taking very good care of them. But then again it's possible that he didn't know what he was doing either. But in the end what he did was still illegal and makes the hobby look bad.