Russia is right to veto the UN resolution against Syria.

https://sg.news.yahoo.com/russia-vetoes-un-resolution-condemn-syria-chemical-attack-220532406.html

There is no concrete proof that Syria government is the mastermind behind the chemical attack.  The accusation is solely based on USA intelligence.  UN is not under the control of any country and must be impartial on its own or risk losing credibility.