John Carreyrou is a two-time Pulitzer Prize-winning French-American investigative journalist known for his tenacious reporting on corporate fraud and misconduct. He is the New York Times bestselling author of Bad Blood: Secrets and Lies in a Silicon Valley Startup, which meticulously chronicled the shocking rise and collapse of the blood-testing company Theranos and its founder, Elizabeth Holmes—a story Carreyrou originally broke in a series of articles for The Wall Street Journal. He is currently a reporter at The New York Times.