Complex sentence: As the police sought murder suspects, Bubbles was mistaken as a suspect and brutally beaten by Detective Vernon Holley in the interrogation room until Seargent Jay Landsman and other officers restrained Holley, calling in Jimmy McNulty to clear things up.
Split into simpler sentences: As the police were looking for murder suspects, he was mistaken as a suspect and then was brutally beaten by Detective Vernon Holley in the interrogation room. He was beaten until Seargent Jay Landsman and other officers restrained Holley calling in Jimmy McNulty to clear things up.