Complex sentence: In his later years, Taylor's influence in the underworld gradually waned until he was fatally wounded in a gunfight with a long-time rival gangster, John Daniel "Snowy" Cutmore, in October 1927.
Split into simpler sentences: In his later years, Taylor's influence in the underworld gradually waned. He was fatally wounded in a gunfight with a long-time rival gangster John Daniel "Snowy" Cutmore in October 1927.