Complex sentence: That Elser had radical views are supported by Schurr's letter to a newspaper in Ulm in 1947 that included the line:' He (Elser) was always extremely interested in some act of violence against Hitler and his cronies.
Split into simpler sentences: That Elser had radical views are supported by a letter Schurr sent to a newspaper in Ulm in 1947. It included the line:' He (Elser) was always extremely interested in some act of violence against Hitler and his cronies.