STACEY: A CORALVILLE POLICE SERGEANT WHO DIED WHILE RESPONDING TO A CALL IS BEING REMEMBERED TODAY. SERGEANT JOHN WILLIAMS DIED JULY 3 FROM A MEDICAL EMERGENCY. HE WAS RESPONDING TO A SHOOTING WHERE A 3-YEAR-OLD ULTIMATELY DIED. FLAGS ARE AT HALF-STAFF UNTIL SUNSET IN HIS HONOR. HIS FUNERAL WAS HELD TODAY IN CORALVILLE. HE WAS A PART OF THE DEPARTMENT FOR 28 YEARS