Friend is an in-home tutor, uncovers murder plot. [What to do?]

No, it’s the kid’s mom.

Cops intervene in “murder for hire” schemes all the time. All granny has to do is put a price tag on it and have the cops set up the scheme. This isn’t rocket science. That’s how these murder plans are foiled. It’s S.O.P.

Lame, lame, lame. I don’t believe a word of this. What ever happened to good old creativity?

For the last time, call the police.
Let them determine whether a crime is/is about to be committed.

This is a matter involving a possible felony, so either consult an attorney or consult the police.
Any further queries involving legal advice would be inappropriate for this forum, so I am closing this thread.