Complex sentence: On the following day, April 29,1945, at the Piazzale Loreto in Milan, Mussolini and Petacci's bodies were hung upside down at an Esso gas station and photographed as a crowd vented their rage upon them.
Split into simpler sentences: On the following day, 29 April, Mussolini and Petacci's bodies were taken to the Piazzale Loreto in Milan and hung upside down in front of an Esso gas station. The bodies were photographed as a crowd vented their rage upon them.