Defense attorneys representing bikers who were arrested after a shooting outside a Texas restaurant say they don't have access to key evidence because they refuse to sign the district attorney's unusual agreement to not share it with media.

Attorney Susan Anderson said at a news conference Thursday that the agreement violates the state's Michael Morton Act, which says prosecutors must permit defense attorneys access — without conditions — to the evidence "as soon as practicable."

Defense attorneys plan to contest the agreement in court.

Nine people died and 20 were injured in the May 17 shooting. A grand jury indicted 106 people earlier this month on charges of engaging in organized criminal activity.

McClennan County District Attorney Abel Reyna declined to comment.