Complex sentence: Convinced that the suspect, a fireman, is not the Alphabet killer, Megan tries to stop the police raid, but fails to do so, the police shoots the suspect dead, causing Megan to spiral into another nervous breakdown.
Split into simpler sentences: Convinced that the suspect, a fireman, is not the Alphabet killer, Megan tries to stop the police raid, but fails to do so. The police shoots the suspect dead, causing Megan to spiral into another nervous breakdown.