When the team arrives in the apartment, Edgar is holding a knife to Karen O'Brien's neck. All members of the team have their guns pointed at Edgar, ready to fire if he so much as twitches that knife.
Hotch: FBI! Drop the knife!
O'Brien: NO! She has to pay!
Reid: I know what she did to you. It's not fair, It wasn't fair, but, but now you've killed 7 women. Do you really want to make it 8?
O'Brien: I'm already gonna go to jail for life.
Reid: That's probably true, but Edgar, if you kill her, if you kill your own mother, you'll have to live with that. Not her, you.
Edgar contemplates this for a moment and releases his mother from his grip but does not lower the knife. Karen runs out to JJ and JJ takes her downstairs to get checked out by the EMTs while the rest of the team continues to try to talk the knife out of his hands, but he's not budging
Morgan: Come on, drop it!
O'Brien shakes his head, and slices the knife across his neck and drops to the ground, dead. The team sighs a somber relief and lowers their guns. Hotch runs over to try to stop the bleeding and the paramedics come, but it's too late. Edgar is dead. The team walks out of the building and they all join to re-cap outside next to the SUVs
Hotch: Morgan, Prentiss- what kept you two?
Morgan and Prentiss shared a knowing look- the kind you make when you have an inside joke with a friend and something related pops up in the Math class and you can't laugh but you desperately want to. Morgan claps Hotch's arm playfully
Morgan: You don't want to know
Reid chuckles
Reid: We definitely do.
Prentiss looks back at Morgan
Prentiss: Let's just say one French Lick police officer is definitely getting fired.
This just leaves the team more confused, but they all head back into their cars. The scene ends