32-YEAR-OLD SEAN WILLIAMS WAS SENTENCED TO STATE PRISON YESTERDAY.  THE FORMER BRADFORD AREA SCHOOL DISTRICT BUS DRIVER PLED GUILTY TO CRIMES AGAINST CHILDREN ON HIS SCHOOL BUS.  CHARGES INCLUDED INVOLUNTARY DEVIATE SEXUAL INTERCOURSE, TAMPERING WITH EVIDENCE, CORRUPTION OF MINORS, ENDANGERING THE WELFARE OF CHILDREN AND MORE.  THE COURT ALSO FOUND WILILAMS MET THE DEFINITION OF A SEXUAL PREDATOR.  HE WILL SERVE UP TO 11 YEARS IN PRISON FOLLOWED BY THREE YEARS OF PAROLE.