Fritz Haber is one of the most important and controversial scientists of the 20th century. How many chemists have been the subject of multiple plays, television documentaries, and graphic novels? How many scientists can report that their discoveries have helped feed billions? Or maimed millions? Haber has been called many things: scientific genius, war criminal, Jew, husband and father, and friend and colleague . Here we examine many sides of the man who oversaw the first chlorine gas attack of World War I.