David Grann has been a staff writer at The New Yorker since 2003. He has written about everything from New York City's antiquated water tunnels to the Aryan Brotherhood prison gang, from the hunt for the giant squid to the mysterious death of the world's greatest Sherlock Holmes expert. His stories have appeared in several anthologies, and he has written for the New York Times Magazine, The Atlantic, the Washington Post, the Wall Street Journal, and The New Republic, where he is also a contributing editor.