The Foreign Secretary has said he is "appalled" by Russia and China's decision to veto a bid by the U.N. Security Council to refer the Syrian Civil War to the International Criminal Court.
William Hague has called for the two countries to justify the move, saying they must explain "why they are continuing to shield those responsible for the most horrific atrocities from justice."
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The former footballer said he hopes speaking about his grief will help others who find it difficult to talk about their feelings.
Royal Marine Alexander Blackman has spent more than three years in jail since being convicted of murdering an insurgent.
There are believed to be less than 250 of the global population remaining due to poaching and loss of habitat.