It's a stretch, but appeal on the grounds that the jury pool was given false information or the good ole "inaffectiveness of counsel" inasmuch as they "leaked" that the girl was dead...
I would agree that is a stretch. Just because JB hired a fool doesn't necessarily substantiate "inaffectiveness of counsel". I would equate that to retaining an Expert and not getting the report you wanted. I hope that made sense.
O/T: I'm a civil litigation paralegal, so I am not well versed with criminal litigation.