something is wrong with the idea he is going to sue two stores, knowing one of the stores was uninvolved. Am I correct in thinking that if it is ever determined which store he bought it from the other store is going to have a clear cause of action against him and his attorney for their legal fees and time?
I hope so, about 12 million and change should cover it. ;-)
He obviously can't prove he bought it at either store. Both stores should have the case thrown out for that reason, plus ask for attorney's fees.
You can't sue someone who might not be involved just because you lost your paperwork. That's stupid.