This undated photo released by the St. Louis County Prosecuting Attorney's office on Monday, Nov. 24, 2014, shows Ferguson police officer Darren Wilson during his medical examination after he fatally shot Michael Brown, in Ferguson, Mo. According to a medical record released as part of the evidence presented to the grand jury that declined to indict Wilson in the fatal shooting, doctors diagnosed Wilson with a facial contusion. (AP Photo/St. Louis County Prosecuting Attorney's Office) 

US clears officer in Ferguson case, criticizes police force

Federal officials concluded there was no evidence to disprove police officer Darren Wilson’s testimony that he feared for his safety, nor was there reliable evidence that Michael Brown had his hands up when he was shot.