Wall Street Journal investigative reporter and author John Carreyrou is an unintimidated agent of truth. The two-time Pulitzer Prize-winning journalist lauded for his reporting excellence on European affairs and American corporate scandals is credited with exposing the recent Silicon Valley Theranos Inc. startup fraud, the topic of his 2018 New York Times bestselling BAD BLOOD: Secrets and Lies in a Silicon Valley Startup, with a film starring Jennifer Lawrence in the works. John coordinates his investigative reporting on Twitter to 20K+ followers, revealing breaking and sordid tales, and promoting journalistic successes by fellow colleagues and influencers.