Complex sentence: Dr. Krebsbach was transferred to the Kaiserwald concentration camp in Latvia during the autumn of 1943 as it is believed he shot Josef Breitenfellner in his home, a German soldier from Langenstein on vacation when he and his friends awoke Krebsbach from his sleep on 22 May 1943.
Split into simpler sentences: Dr. Krebsbach was transferred to the Kaiserwald concentration camp in Latvia during the autumn of 1943, as it is believed he shot Josef Breitenfellner in his home. Breitenfellner was a German soldier from Langenstein on vacation when he and his friends awoke Krebsbach from his sleep on 22 May 1943.