Complex sentence: Heaven and Hell, the short version title for the book, gained noteriety for expressing frank and often mean-sprited feelings to Eagles leaders Don Henley and Glenn Frey, whether the claims were true or not has not been disclosed by Henley or Frey.
Split into simpler sentences: Heaven and Hell, the short version title for the book, gained notoriety for expressing frank and often mean-spirited feelings to Eagles leaders Don Henley and Glenn Frey. Whether the claims were true or not has not been disclosed by Henley or Frey.