Re: Psycho creeps will always be with us.
"in the UK the mom would probably have been arrested."
I don't know why you got the down votes as this is what happens.
I've known it happen when an elderly couple in a remote cottage in S Down or S Armagh were being attacked. It took a little while for the police to get someone senior enough to countermand it (a gold course was mentioned). The SOCO who attended the PM told me there no brains in the carnial cavity but he wasn't sure there'd been any originally.