Complex sentence: Although Nix's involvement in Bennett's murder was never proved, this incident precipitated a string of killings that left 25 people dead in six states over the next four years-and Nix was just getting started; his next encounter would be with an American legend.
Split into simpler sentences: Although Nix's involvement in Bennett's murder was never proved, this incident precipitated a string of killings that left 25 people dead in six states over the next four years. And Nix was just getting started; his next encounter would be with an American legend.