《现代快报》中文报道称：“二战历史学家赫尔穆特·康拉德相信，塞弗罗可能在当天造成了美军约3000-4200人的伤亡。"

《现代快报》没有提到的是，这个“二战历史学家”是业余的，后来为塞弗罗出了本书。

华盛顿邮报2004年的报道是：

业余战争历史学家、前水肺潜水员和图形艺术家赫尔穆特·康拉德，从美国老兵们那里听说了这个机枪手，老兵们称其为“奥马哈海滩之兽”，因为他那天撂倒了（mowed down）数百名美国兵。

塞弗罗和赫尔穆特两人主张，塞弗罗有可能击中了超过2000名美国兵。德国和美国的历史学家们认为这个数字是不可能的，因为在奥马哈海滩30名德国兵造成的美国兵伤亡人数估计为2500人（尽管2500这个数字也远非精确）。

http://www.washingtonpost.com/wp-dyn/articles/A10191-2004Jul23_2.html

Severloh said he first told his tale to an inquisitive correspondent for ABC News during the 40th anniversary of D-Day in 1984. But the real breakthrough came when an amateur war historian named Helmut Konrad von Keusgen tracked Severloh down. Von Keusgen, a former scuba diver and graphic artist, said he had heard from U.S. veterans about the machine gunner they called the "Beast of Omaha Beach" because he had mowed down hundreds of GIs that day. Severloh confessed he was that gunner. Von Keusgen ghost-wrote Severloh's memoirs, published in 2000, and still visits him regularly.

The two men contend that Severloh might have shot more than 2,000 GIs. That's an impossible figure, according to German and American historians, who say that although the numbers are far from exact, estimates are that about 2,500 Americans were killed or wounded by the 30 German soldiers on the beach.

"My guess is yes, he helped kill or wound hundreds, but how many hundreds would be hard to say," Roger Cirillo, a military historian at the Association of the U.S. Army in Arlington, wrote in an e-mail. He added: "Omaha is like Pickett's Charge. The story has gotten better with age, though no one doubts it was a horror show. Men on both sides were brave beyond reason, and this is the sole truth of the story."