Complex sentence: In 2004, police shut down neighboring parties hosted at the Mustang Village, an apartment complex near California State University's San Luis Obispo campus, additionally utilizing helicopter patrols over the Cedar Creek apartment complex, where police had been called during past celebrations (1).
Split into simpler sentences: In 2004, police shut down neighboring parties hosted at the Mustang Village, an apartment complex near California State University's San Luis Obispo campus. Additionally, a police helicopter patrolled over the Cedar Creek apartment complex, where police had been called during past celebrations (1).