Right, so if The Onion bid $2.5M and the Sandy hook families said "Our portion of that $2.5M will be forgiven and it will pay for the other creditors" Then Jones' debt would have been reduce by ~$5M instead of the $3.5M of the other bidder.
Now, it is possible that the onion only bid $1.75M in which case there might be something to the claim. But, I doubt that's the case.
Now, it is possible that the onion only bid $1.75M in which case there might be something to the claim. But, I doubt that's the case.