I hate to be "that" guy but this has two things wrong with it:
1. It doesn't explain (prove) why this is the case
and
2. It can't prove it because there is nothing that says the A couldn't be 3rd if Black is one...
We need to stop being sloppy with the proofs and hosts need to stop giving points if they are wrong ><.
for my word lets go with GRACE
There is still a baddie left or the game would be over. It's either Ike or curly bill. Most likely curly bill.
We will see what the night brings but vine would be a good spy target