This is true...Foster's accuser didn't cooperate with the NFL at all and didn't talk with them, only Foster did. From what I've read Foster cooperated fully and without hesitation, and didn't say anything that could be construed as misleading (something Zeke had going against him, no matter how innocent it might have been). So the NFL only had police reports and investigation results, hotel video, and Foster's version of events, which seemed to be backed up by the rest of the evidence (such as it is).