[hole_n_one]

We beg you now to return our mother to us, so that we can celebrate with her,”

The out of place usage of the word “celebrate” is what leads me to think that they know she is dead.

Celebrate, as in a Celebration of Life for someone who has died.

[Cowgirl of Justice]

Yes. That is what I got as well.

But, why????? Why her????

[PA-RIVER]

I think Savanah is using the kidnappers phrases from the last ransom note, so that the kidnapper can see she is cooperating with the details in the ransom note. I think the mother may still be alive. Her family really has no idea.

[Az Joe]

and saying “we beg you “NOW”.

sounds weird like, something has happened and we NOW beg you to ....