Impossible !
Brenda testified that somebody went back into the bar to get the custom "cigarettes" ...
Shirley, she wouldn't commit perjury ?
I've always been suspicious of the parking lot stories. I suspect Brenda's truck was moved at some point during the evening -- even Keith Stone said, at closing time, Brenda's truck wasn't in the same spot it was parked earlier -- and I suspect the returning for cigarettes was to cover for anyone saying they saw them going back into the parking lot near closing time.
Now, who moved the truck and why?