Fred L. Murphy, 58, has resigned from the Polk County Public Schools as the assistant superintendent of support services. He submitted a letter of resignation to Dr. Sherrie Nickell, superintendent of schools, on Tuesday, Sept. 4.

In it he stated that while his last official day would be Nov. 12, he would begin taking leave Sept. 5. He cited health concerns for his suddenly announced decision, as his “personal health has gotten to the point that I can no longer perform at the level to which I am accustomed.”