Complex sentence: He attended Southern Guilford High School, where he was active in student government and theatre arts and editor of the school's yearbook; he later went on to earn a journalism degree from the University of North Carolina at Chapel Hill.
Split into simpler sentences: He attended Southern Guilford High School, where he was active in student government and theatre arts and editor of the school's yearbook. He later went on to earn a journalism degree from the University of North Carolina at Chapel Hill.