Clarence "C.J." Stewart's lawyer says the armed robbery and kidnapping charges in Las Vegas are all about Simpson, and anybody sitting next to him isn't going to get a fair trial.
A Supreme Court clerk says that the filing arrived Monday.
Stewart is facing trial with Simpson beginning Sept. 8. He's one of five men who accompanied Simpson during a confrontation in September with two sports memorabilia dealers at a casino hotel room.
Another former co-defendant, Charles Ehrlich, pleaded guilty Monday to reduced felony charges and agreed to testify against the Hall of Fame football player.
He's the fourth former co-defendant to take a plea deal and agree to testify for the prosecution.
