A DeKalb County judge acquitted Ikegwuonu on Friday of residential burglary and criminal trespassing.
Ikegwuonu and his twin brother, Bill, were arrested in November 2006. They were accused of trying to steal a video game system from an apartment in the city of DeKalb.
Bill Ikegwuonu played for Northern Illinois' football team at the time. He was acquitted of similar charges in April.
Jack Ikegwuonu was playing for Wisconsin when he was arrested. He was drafted by the Eagles last year but didn't play because of reconstructive knee surgery.