If you do a copyright search for Judas Priest (The band, not the corporation) , the SR (Sound Recording) rights are almost always Downing, Tipton, and Halford. So it;s possible since Judas Priest was named as the defendant, nobody else (except the lawers and judge) had to show up. Since the trial was ridiculous maybe the drummer(s) just said "Screw this!" and stayed home.
