Masterful scene.

In a previous post, I said it was tough to see him through Liz's eyes throughout the film because she had never truly seen him.

I'm of the opinion we the audience of this film needed to see him perpetrate a crime.

Her pointed question to him, the manner in which she presented one of his victims, and the way he, finally, told her the truth - the way he finally revealed himself to her, was riveting.