Complex sentence: Josias Kumpf (born April 7,1925) was a Nazi concentration camp guard who took part in a killing spree in which 42,000 people were killed.
Split into simpler sentences: Josias Kumpf (born April 7,1925) is a former Nazi concentration camp guard. Kumpf is believed to have been a part in the Holocaust; including a killing spree in which 42,000 people were killed.