Mario Williams spent his Wednesday afternoon seeing the sights of downtown Buffalo with his fiance, and now Jason La Canfora of NFL.com reports that Williams is back at team headquarters, where the Buffalo Bills are still trying to close the deal on the richest contract for a defender in the league.

The Bills have also confirmed that as of the time of the publishing of this post, Williams is still at One Bills Drive.

Williams has now been unofficially - and then officially - visiting with Bills officials in some form or another for over 24 hours, as the Bills picked him up in a private jet on Tuesday afternoon at four o'clock. The Bills have done a lot in their sales pitch, including the aforementioned offer that will reportedly make Williams the highest-paid defender in the NFL, flying his fiance in for a visit, and meetings with just about every relevant face in the football organization, including a few players.

We're still playing the waiting game, however. Earlier reports indicate that Williams does have another visit planned for Thursday, which puts more pressure on the Bills to close the deal. If Williams leaves without a contract, the team's chances of landing their prize commodity diminish significantly - and that's putting it mildly.