Complex sentence: After publication of his second book, Pill City, journalists challenged the existence of people described in the book, leading to multiple public reviews of Deutsch's writing by former employers, including Newsday, The New York Daily News, and The New York Times.
Split into simpler sentences: After publication of his second book, Pill City, journalists challenged the existence of people described in the book. Reviews of Deutsch's past work were begun by Newsday, The New York Daily News, and The New York Times.