A veteran Detroit school official was arraigned on a murder charge in the death of his wife, whose body was found in a freezer at their home more than three years after she was reported missing. Leonard Tyburski, 45, who heads the department of attendance at Detroit Mackenzie High School, was ordered held without bond on a charge of open murder after his arraignment in 35th District Court. The body of his wife, Dorothy Tyburski, was discovered Monday by their daughter, Kelly, 20, who had pried open the freezer door. Kelly Tyburski had reported her mother missing in October, 1985. The investigation of the disappearance of Dorothy Tyburski, who was 37 when she was reported missing, was dropped after two years because of lack of progress, police said.