In the new game deus ex:human revolution is there anything at the end for not killing anyone?

I'm not killing people just in case there's a bonus at the end for doing it. But it there isn't I want to use guns...In the new game deus ex:human revolution is there anything at the end for not killing anyone?
Pretty sure you get the pacifist achievment, as well as maybe a difference ending.



Pacifist runs are really fun though and offer a great challenge.

alpinestars

used boats