He played college football for the USC Trojans, receiving consensus All-American honors in 2003.

During his junior year, Williams made the all-state Class 4A second-team while making 35 receptions for 803 yards (22.9 avg.)

Williams' honors included Tom Lemming All-American, Super Prep All-Dixie, PrepStar All-Southeast Region, St. Petersburg Times All-Suncoast second-team, and Tampa Tribune All-Hillsborough County.

As a junior in 2001, Williams earned Tampa Tribune All-Hillsborough County first-team honors, averaging 14.7 points, 10.7 rebounds and 5.3 assists while helping his team to the state semifinals.

Williams attended the University of Southern California, where he played for coach Pete Carroll's USC Trojans football team from 2002 to 2003.

Williams was a finalist for the 2003 Biletnikoff Award (nation's top receiver) while finishing eighth in Heisman Trophy voting.

That year, he also completed two pass attempts for 38 yards and one touchdown against Michigan in the Rose Bowl, and blocked a field goal.

Ohio State running back Maurice Clarett was suspended by his school following his 2002 freshman year.

After being unable to gain reinstatement with Ohio State, Clarett made the decision to declare for the NFL draft.

As Williams was ineligible for NCAA reinstatement, he was required to sit the entire 2004 football season and was not allowed to practice with USC as well.

[5] Williams selected jersey #88, which had been retired in honor of Hall of Fame tight end Charlie Sanders.

Williams recorded his first touchdown catch in his NFL debut, a 3-yard pass from quarterback Joey Harrington, in the season opener against Green Bay.

Williams was traded along with Josh McCown to the Oakland Raiders during the first day of the 2007 NFL draft in exchange for a 2007 fourth-round pick which the Lions used to select A.J.

On Monday, January 3, the Seahawks rewarded Williams for his comeback season with a three-year contract extension.

[9] After retiring in 2011, Williams coached defensive backs in his first season of high school in Los Angeles.

In 2014, Williams accepted a position as head coach at Locke High School in Los Angeles.

[11] Williams accepted the head coaching job at Wharton High School in Tampa, Florida.