We've seen a video of a man in a Maryland gas station suspected of winning.
A witness says he may have had a VDOT logo on the back of his vest.
A spokeswoman for VDOT says it looks like one of their vests, maybe worn by someone in their safety service patrol, but they don't know who the man is.
An Arizona lottery official says no one has come forward yet to redeem the winning ticket.
The person has 180 days to do that and has to redeem it in Arizona, or mail it in.