>> reporter: now retired, navy seal edward gallagher was acquitted of murdering an isis prisoner, but says he still has to fight to clear his name. >> even though i went to trial, exposed all the lies that were said about me by certain cowards in my platoon, and found not guilty, there are those to this day who refuse to accept that fact. >> reporter: gallagher was convicted of posing with the body of the prisoner, but thanks to president trump, the sentence was overturned and he was allowed to keep his trident pin, the symbol of his status as a seal. now he has taken to social media to call out those who testified against him, complete with pictures. >> the truth has never been fully exposed about what really happened.u may u have no idea. >> reporter: the controversy surrounding gallagher was one of the reasons the navy's top seal issued a memo last summer stating, "we have a problem with good order and discipline." and the controversy is not over yet. david martin, cbs news, the pentagon.