I just saw this on Sportsline.  Jackson will be suspended 4 games for abuse of the NFL substance abuse policy.  Jackson had started all 32 games in his first 2 seasons since being drafted in the 4th round 2 years ago.  The story didn't say if the substance was of the recreational or performance enhancing variety.  Jackson seems apologetic.

Interesting note at the bottom of the article is that his suspension opens the door for other SU grad Will Allen to start at free safety for the Bucs.