DEARBORN, Mo. – Missouri Lottery officials on Thursday verified one of two tickets that matched all six numbers to split a record $588 million Powerball jackpot, but that ticket holder – and another in Arizona – remained a mystery, even as neighbors and co-workers lamented their losses and gossiped about who may have won.

The tickets were sold at a convenience store in suburban Phoenix and a gas station in Dearborn, Mo., just off Interstate 29, the highway linking Kansas City to the Canadian border.

Missouri lottery officials said they verified a ticket that was presented to them Thursday and set a news conference for 11 a.m. today at North Platte High School, near where the ticket was bought.