I think this was just a robbery.
?? The B for "bi***", she only had sixty bucks on her I'm to suppose? Right now, the info is that this thug only carved on her AFTER he saw her McCain bumper sticker. What's not to say he intended to carve B on one cheek, O on the other but was unable to *complete his work*?
Sounds like Jack the Ripper the night of the “Double Event”. he was interrupted carving up Liz Stride and had to satiate his lust by finding Catherine Eddowes ten blocks away.