You imagine things, I read things.
Apparently, you didn't read this.
The Americans took Bin Laden's body into custody after the firefight, taking it back to Afghanistan by helicopter, and confirmed his identity. His DNA matched DNA taken from a sister who had died of brain cancer in Boston.
Source: http://abcnews.go.com/Blotter/khalid-sheikh-muhammad-capture-osama-bin-laden-courier/story?id=13506413&page=2