Complex sentence: Weisman graduated from Francis W. Parker High School, in Chicago, Illinois.He went to the Merchant Marin Acadamey and briefly attended University of Illinois at Chicago, before leaving school to pursue his business interests.
Split into simpler sentences: Weisman graduated from Francis W. Parker High School, in Chicago, Illinois. He spent time in the Merchant Marines, and briefly attended University of Illinois at Chicago, before leaving school to pursue his business interests.