User blog comment:GravityMan/Literature vs History 4: Atticus Finch vs Jimmy McGill/@comment-25872721-20160131230440

Battle was nice. Not sure who won.

The hint is black coffee and... goddammit Grav.

Coffee is the signature drink of Godot from Phoenix Wright: Ace Attorney: Trials and Tribulations.

Black Coffee is a play written by Agatha Christie, who writes various detective novels. Her most famous characters are Hercule Poirot and Jane Myrple.

I'm going to ignore that bloody chimp. I don't care if I get the hints wrong I'm just going to ignore it.

Someone related to Agatha Christie perhaps?