Complex sentence: He takes over Edward's plan, trying to kill several Guild leaders, and attempts to assassinate the Patrician at Vimes's wedding, and is hunted down and relieved of his gonne by Vimes.
Split into simpler sentences: He takes over Edward's plan, trying to kill several Guild leaders, and attempts to assassinate the Patrician at Vimes's wedding. He is hunted down and relieved of his gonne by Vimes.