Complex sentence: The Wakefield massacre occurred on Tuesday, December 26,2000, at Edgewater Technology in Wakefield, Massachusetts, where Michael "AotC" McDermott, an application support employee, shot and killed seven co-workers.
Split into simpler sentences: The Wakefield massacre occurred on December 26,2000, at Edgewater Technology in Wakefield, Massachusetts. Michael McDermott, an application support employee, shot and killed seven co-workers.