From the Brits' D-Day Museum site:
"The breakdown of US casualties was 1465 dead, 3184 wounded, 1928 missing and 26 captured. Of the total US figure, 2499 casualties were from the US airborne troops (238 of them being deaths). The casualties at Utah Beach were relatively light: 197, including 60 missing. However, the US 1st and 29th Divisions together suffered around 2000 casualties at Omaha Beach."
There was a total of @ 2000 casualties on Omaha. This includes wounded. This guy would have had to be responsible for every single US KIA (ignoring drownings, artillery/mortars, every other German soldier and friendly fire) and even that number wouldn't come close to what is claimed in this article.
If I was to bet, I would bet that this bozo ran and made up the story. It does tell you something about mass psychology that so many people believe the story.
Today, if we lose one soldier, they want investigations and somebody's head on a platter. In all previous wars, thousands were thrown at the enemy with no thought it may have been done better. We wasted more people on a Korean hill than in a year in Iraq. Douglas MacArthur was a hero, and Peter Pace can't even get a hearing.