Here is another link for more information about the teacher.
http://blogs.browardpalmbeach.com/pulp/2012/06/danielle_harkins_demon_ritual.php
They're as idiotic and demented as she is.
For 16- and 17-year olds to be convinced to do this, she must have had some power over them. Most likely she was providing them with alcohol and having sex with them. What a perv.