Gregg Olsen 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. Gregg Olsen is the #1 New York Times, #1 Amazon Charts, #1 Wall Street Journal, Washington Post and USA Today bestselling author of more than 30 crime books. An impassioned voice for victims and their families, Olsen has been a guest on Dateline, 48 Hours, 2020, William Shatner's Aftermath, Deadly Women, Good Morning America, CBS Morning News, Today, FOX News, CNN, Anderson Cooper, MSNBC, Entertainment Tonight, Snapped, Forensic Files, Inside Edition, Nancy Grace, Extra, Access Hollywood, NPR with Scott Simon and Biography among dozens of other shows.