Mega Millions Maryland mystery

Almost a week after someone bought the winning mega-millions lottery at a Baltimore county 7-Eleven, people still are asking who got lucky.

On Thursday, Maryland lottery officials held a press conference to announce that no one has come forward with the winning ticket. There were three winning tickets for the historic $640 million winning ticket. The winning tickets were sold in Maryland, Illinois and Kansas.

“Here's is the fact the ticket hasn't been claimed no one has contacted us,” says Stephen Martino, Maryland Lottery director.

Mirlande Wilson told people she has the winning ticket. She's apparently now is in seclusion but didn't stop by the lottery office on her way out.

Lottery officials reviewed surveillance from the 7-Eleven but say it's out of sync with real time. They won’t say if they saw Wilson on the tape at all.

Wilson, who works at a nearby McDonalds, bought tickets for a group of fellow employees. But the winning ticket was a single purchase.

Lottery officials say they held a news conference out of concern Wilson may prevent the real winner from coming forward inadvertently.

If someone who actually has the winning ticket in error believes the ticket has been claimed then they may very well dispose of the winning ticket.

Maryland lottery officials affirm the mystery surrounding the mega millions winner may never be solved publicly. Even if Wilson has the winning ticket and claims her millions, she may then choose to remain anonymous.

Martino says there's been no shortage of rumors since the drawing came two days before April Fools' day, but it would be a tragedy if someone mistakenly thought the record jackpot had been claimed and discarded a ticket worth $218 million.

He encouraged people to check their tickets, especially if they were purchased at the 7-Eleven in Milford Mill. The winner has until Sept. 28 to claim the jackpot.

The Associated Press contributed to this report.