" Well, the more I learn, the less motivation I can find for Colonel Moore to kill his subordinate. On the other hand, I see that other people could have strong motives.”
Kent looked exasperated, and he said, “Paul, I understand what you’re doing up to a point, and so will everyone else. But you’ve passed that point, and if you don’t arrest Moore now and he turns out to be the killer, and the FBI arrests him, then you look really stupid.”
“I know that, Bill. But if I do arrest him and he’s not the killer, I look worse than stupid.”
“Show some balls.”
“Fuck you.”
“Hey! You’re speaking to a superior officer.”
“Fuck you, sir. "

― Nelson DeMille , The General's Daughter