Complex sentence: Hernandez and Taphorn argued for several minutes, and when Taphorn began to walk away, Hernandez punched him in the side of the head; doctors would later diagnose Taphorn with a ruptured eardrum.
Split into simpler sentences: Hernandez and Taphorn argued for several minutes, and when Taphorn began to walk away, Hernandez punched him in the side of the head. Doctors would later diagnose Taphorn with a ruptured eardrum.