Complex sentence: Cannon, who was a senior member of the Rattigan gang, was wearing a bullet proof vest when he died and was a suspect in over a dozen serious incidents linked to the feud in the year before his death.
Split into simpler sentences: Cannon, who was a senior member of the Rattigan gang, was wearing a bullet proof vest when he died. He was a suspect in over a dozen serious incidents linked to the feud in the year before his death.