In 1991 , he was switched to the first sergeant career field .
He left the service in 1977 to attend nursing school at Saint Leo University in Florida , and then re-enlisted in 1982 as an aircraft maintainer .
In 1991 , he was switched to the first sergeant career field .
He left the service in 1977 to attend nursing school at Saint Leo University in Florida , and then re-enlisted in 1982 as an aircraft maintainer .