Complex sentence: There is no direct evidence that suggests that either Lin or his generals were involved in the coup plot, but many scholars believe that his son, Lin Liguo, a high-ranking officer in the People's Liberation Air Force, was instead the author.
Split into simpler sentences: There is no direct evidence that suggests that either Lin or his generals were involved in the coup plot. Many scholars believe that his son, Lin Liguo, a high-ranking officer in the People's Liberation Air Force, was instead the author.