Actually this is what the Holder DOJ report says:
"Given that Wilson’s account is corroborated by physical evidence and that his perception of a threat posed by Brown is corroborated by other eyewitnesses, to include aspects of the testimony of [Brown’s friend], there is no credible evidence that Wilson willfully shot Brown as he was attempting to surrender or was otherwise not posing a threat.
Some of those accounts are materially inconsistent with that witness’s own prior statements with no explanation, credible [or] otherwise, as to why those accounts changed over time. Certain other witnesses who originally stated Brown had his hands up in surrender recanted their original accounts, admitting that they did not witness the shooting or parts of it, despite what they initially reported either to federal or local law enforcement or to the media."
Ouch. Edited