Every HTGAWM episode leaves me with a lot of questions.

Yes, I think that would be a classy move. However, why would Annalise do that??

I actually thought that he did it especially on the episode when Annalise was lying down and looking at the family picture saying "Why did they do it?"

I think Nate and Wes asked Nia to do that in order to see if Annalise is really capable of killing someone if needed.