I agree with Yashur on this point; it seems like a hint about a role.
There was a hint about a role when they talked about compliments. Jen killed twice in a way that the victims died instantly, but here, Ment was still crawling around and shouting something.
We need to try to connect the clue from Ment to Alex. If it connects, then I'm wrong. If it connects to someone else, we'll find Nancy.