Person of Interest, Season 5

The Machine:
If you can hear this, you're alone. The only thing left of me is the sound of my voice. I was built to predict people. But to predict them, you have to truly understand them. So I began by breaking their lives down into moments, trying to find the connections, the things that explained why they did what they did. And what I found was, the moment that often mattered the most, the moment you truly found out who they were, was often their last one.