Gregg Olsen (born March 5, 1959, in Seattle, Washington) is a New York Times, USA Today and The Wall Street Journal bestselling author of nonfiction books and novels, most of which are crime-related. Olsen has written ten nonfiction books, nineteen novels, and a novella. He lives in Olalla, Washington, with his wife and twin daughters and has been a guest on dozens of national and local television shows, including educational programs for the History Channel, Learning Channel, and Discovery Channel. Throughout his works, Olsen displays a remarkable ability to create a riveting narrative that offers readers fascinating insights into the lives of people caught in extraordinary circumstances.