Complex sentence: The school was named for the pioneering television newsman Edward R. Murrow, Murrow was founded according to the pedagogical theories of John Dewey and the learning methods of John Dewey High School.
Split into simpler sentences: The school was named for the pioneering television newsman Edward R. Murrow. Murrow H.S. was founded according to the pedagogical theories of John Dewey and the learning methods of John Dewey High School.