He has traveled to thirty-five countries and has worked as a war correspondent in Vietnam, an investigative reporter for the Shreveport (LA) Times, and as the city editor for the Shreveport (LA) Journal. During the 1970s, Keith investigated and reported on the crimes of Police Commissioner George D’Artois. His investigative journalism and devotion to the truth earned him both praise and national recognition. Now a full-time writer, he has published numerous books, articles, and biographies.