Mystery man claims winning Powerball ticket ... in Maryland?

By Jason White, NBC News Officials say the winning tickets for the largest Powerball jackpot ever -- $587 million -- were sold in Missouri and Arizona. But on Thursday, a mystery man showed up at a gas station in Upper Marlboro, Md., claiming to hold one of the big winners. Surveillance video obtained by WJLA, a local news station, showed the man -- burly, bald, African-American and clad in a yellow construction suit -- slowly amble up to the counter, where he pulled out some lottery tickets.  He showed them to the clerk and then repeatedly pumped his arms in excitement after apparently seeing the numbers match. According to Kamran Afgan, a cashier on duty at the time, the man said something along the lines of, "Oh my God," after his numbers matched, and gave Afgan the ticket to hold and examine. On the surveillance video, the man can be seen repeatedly pumping his arms in excitement. Afgan said the man told him he was from Maryland and a member of the military. It's unclear if he's based in Arizona, but his ticket was an Arizona ticket, Afgan told NBC News. Afghan said he didn't get a chance to scan the ticket into the lottery machine because the man took it back so quickly. The entire store was in shock, Afgan said. Before leaving, the man showed his tickets to two other people in the store who confirmed he had the winner. At that point, the man walked out. But a moment later, he returned, saying he forget to buy gas. One can understand how he might have been a little distracted. No winner has come forward yet in Arizona, which means it is technically possible this Maryland mystery man holds a ticket worth $293.7 million in his hands. Missouri lottery officials plan to unveil their state's winner at a news conference Friday. A friend of the winner said on the TODAY show that it "couldn't happen to a better guy." NBC News' Cydney Weiner contributed to this report. NBC's Kerry Sanders reports from Dearborn, Mo., where the town is celebrating one family's luck of winning half the record Powerball jackpot. A family friend of the couple, expected to be named by lottery officials Friday, tells TODAY's Savannah Guthrie "it couldn't have happened to a better guy." More content from NBCNews.com: Electrician facing foreclosure collects $1M Powerball prize Video: Polar ice melting faster than expected 'I screwed up royally,' Petraeus writes to old Army chum Source: Lawsuits between Strauss-Kahn, hotel maid settled in principal Bear spray arrest: Woman catches suspect in Bay Area package thefts Teen girls were best friends in life, together in death Follow US news from NBCNews.com on Twitter and Facebook