We now know the identity of The Ten Commandments Killer.

How did that reveal play into American Horror Story Season 5 Episode 9? Let's find out, shall we?

Watch American Horror Story Season 5 Episode 9 Online

On this installment of the FX drama, Alex enlisted John's assistance when it came to containing an outbreak.

Elsewhere, Donovan learned The Countess' true intentions; while Liz and Iris planned to leave the hotel for good.

Did they succeed? What did Donovan actually discover about The Countess? There's a very easy to way to find out.

Click on the above video, follow its prompts and watch American Horror Story online right here and now.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.