The $590M question: Was it Powerball winner Gloria MacKenzie?
                                
                                
                                    (Newser) -
                                    Plant City, Florida, is abuzz over a random act of kindness—possibly at the hands of the  biggest solo lottery winner  in US history. A woman who apparently looked like 84-year-old  Gloria MacKenzie  had an early-bird dinner at BuddyFreddy's on Sunday, leaving the restaurant with her two companions around...