Basic lines from every cop, crime, or crime related show I've ever seen. And I've seen a lot.
  1. "This isn't supposed to happen to us/people like us."
  2. "You hear about this happening to other people, you never think it'll happen to you."
  3. "You don't understand what I'm going through."
    Especially when the other character's backstory makes them REALLY understand
  4. "And you suspect me?"
    They have to follow all leads people, calm down, it's not personal.