Larry Grathwohl

Larry David Grathwohl (October 13, 1947 – July 18, 2013) was a United States Army veteran and an Federal Bureau of Investigation informant in the 1970s. He infiltrated the Weather Underground and co-wrote a book about his experiences: Bringing Down America: An FBI informer with the Weathermen (1976).

Grathwohl was in the 2nd Battalion, 502nd Regiment, 101st Airborne Division from 1965 to 1966 and served in the Vietnam War. He became a sergeant.