Richardson attended Cal Poly out of St. Bernard High School, and was a letterman in football.

As a Mustang senior, he won AFCA All-America honors, and started all of the team's 11 games and recorded five interceptions returned for 105 yards and two touchdowns, plus 50 tackles, seven pass deflections and a sack.

Late in the 2003 season, Richardson accepted an invitation to the Las Vegas All-American Classic showcase game.

[2] Richardson signed an undrafted free-agent contract with the Jacksonville Jaguars in April 2004.

This biographical article relating to an American football defensive back born in the 1980s is a stub.