If he did the bombing because of this, then it makes sense. Because nobody believes that Assad used chemical weapons. He's already winning and there is no reason or whatsoever for him to do so.
http://www.youtube.com/watch?v=k9PoRUVviiQSometimes you just need to show who the boss is.
If killing of innocent people is just to prove to x1 that America can bumb any countries without the help of China then I think is evil and wickedness from those who were voted to protect humanity. Though Assad has been against his own people but attack him and his regime because of prove of superiority then is evil.
Nobody said USA is being ruled by saints. There is no evil/holyness when you rule a country. Only profits and losses. Do you think average American people give a fuck about who died in the Middle East? No. They don't care who's dying as long as it's not "them".
USA knows this and because of that they are the most powerful country. USA was founded by criminals deported from the European countries in the end. And as you know, criminals do not have a sense of "empathy".
What's the criminal? When was this? Americans are always fighting the more accurate weapons and ammunition. Victims among the civilian population. Compare the result of American and Russian bombardments in Syria.