Original sentence: During the chaos following the attack of the city, some were killed in the Safety Zone, but the atrocities in the rest of the city were far greater by all accounts.From Shanghai to Nanjing,  Japanese soldiers then committed numerous atrocities, the most famous being the contest to behead 100 people.However, an overwhelming amount of evidence contradicts this.However, many historians include a much larger area around the city.The existence of such an atrocity has been repeatedly confirmed by statements of Westerners at the Tribunal and eyewitnesses, and by photographic and archaeological evidence.While the Japanese government has acknowledged such an incident did occur, extremists have presented a case starting with the Imperial Japanese Army's claims at the International Military Tribunal for the Far East that the death toll was military in nature and that no such civilian atrocities ever occurred
Edited sentence: During the chaos following the attack of the city, some were killed in the Safety Zone.However, many Chinese historians include a much larger area around the city.Ikuhiko Hata,who is renowened for his intensive research on comfort women issues in Japan, estimates the death toll is about 40,000.While the Japanese government has acknowledged such an incident did occur, nationalists  have presented a case starting with the Imperial Japanese Army's claims at the International Military Tribunal for the Far East that the death toll was military in nature and that no such civilian atrocities ever occurred