Updated 03/15/2012 04:45 PM
News conference: Bills sign Mario Williams
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Williams is one of the hottest prospects available in the NFL's free agency right now. He's a pass-rusher, and his addition to the team could give the Bills one of the fiercest defenses in the league.
According to the Buffalo Bills website Williams arrived at the Ralph Wilson Stadium around 9 a.m. Williams spent the past two nights in Buffalo, even bringing his fiancé to town for the visit yesterday.