Original: Much of it involved a famous Boer spy, Capt. Fritz Joubert Duquesne, who became a German spy in both World Wars and claimed to have killed Field Marshal Kitchener while en route to meet with the Russians.
Simplified: He spied on a famous Boer spy, Capt. Fritz Joubert Duquesne, who became a German spy in both World Wars and claimed to have killed Field Marshal Kitchener.