Good catch....
What's the symbol?
Closest I could find was some satanic thing, even for this trial that is going a bit far.
"Why be a Fraud? All is such Bullshit." Is what is written on the counter.
The thing is, when she was testifying about the writing on the mirror she said something a bit odd - to paraphrase - 'she couldn't understand why he was writing with blood from the stump because there were plenty of paint brushes around.'
Which made me wonder...
Maybe it is some weird cult....
After all God did send a shaft of light to illuminate Camille when she was exposing the charity fraud.