Williams attended Clayton Valley High School in Concord, California.

He accumulated 138 tackles (79 of which were solo), five interceptions (two of which were returned for touchdowns), 10 pass breakups, and two blocked extra points his senior year, earning second-team all-state honors.

[2] Williams was selected by the Oakland Raiders in the third round, with the 83rd overall pick, of the 2003 NFL draft.

[4] Williams was waived by the Raiders in the final round of roster cuts on September 3, 2011.

Overall, he played in 84 games, starting 24, during his NFL career, recording 104 solo tackles, 25 assisted tackles, one sack, one forced fumble, two fumble recoveries, one interception, six pass breakups and one touchdown.