Where perjured trial testimony unknowingly presented did not violate due process rights of defendant and habeas petition was properly denied.The 7th U.S. Circuit Court of Appeals affirmed a decision by Judge Thomas M. Durkin, Northern District of Illinois. In April 1992, a fight broke out among various individuals involving Willie Johnson. Johnson was assisted by Cedric Herron and Sammie Walker to break up the altercation. Later that same night, two individuals shot Johnson, Herron and Walker. Johnson was the only one who …