Whoever bought the winning Powerball ticket from a Chino Hills, California, 7-Eleven remains a mystery, even to the store's owner.
Balbir Atwal, who made national news last week when the public learned that his store had sold one of the jackpot-winning tickets, said he has no idea who the winner is.
And he can't even look it up. Lottery officials seized the store's security camera footage and other materials that could contain clues about the winner's identity. California Lottery spokesman Russell Lopez said that's standard procedure when somebody wins a big prize.
"We have former cops and investigators on staff," Lopez said. "Its a real complete law enforcement investigation."
Like other types of law enforcement investigations, investigations do not to share materials with the public. Lopez said this is to avoid hoaxes.
Lopez added that investigators don't rely on surveillance camera footage to confirm a winner.
"It's supplemental," Lopez said. "We've seen photos that have been wrong in the past... we don't want to make that mistake again."
Though Atwal would like to know who the winner is as much as anyone else, he had no complaints Wednesday, Jan. 20.
In addition to receiving $1 million for selling one of three jackpot tickets, he said lottery sales at the store have gone up 70-80 percent.
On Wednesday, the store displayed a sign reading "millionaire made here," along with two prize-claiming forms on the doors reading "powerball winner... 528.8 million."
Atwal hopes his own luck will continue.
"This is just the beginning," he said.