Inspector

— Having successfully committed a criime without a single witness why would he call the police and consult a detective? Fair play?
— He's trying to be clever. It's overconfidence.
— Did you see him? Morbidly obese, the undisguised halitosis of a single man living on his own. The righ sleeve of an internet porn addict, the breathing pattern of an untreated heart condition. Low self-esteem, tiny IQ and a limited life expectancy, and you think he's a criminal mastermind? Don't worry, this is just stupid.
— What did you say? Heart what?

— You've got two more minutes, they want to know more about the driver.
— Forget him, he's an idiot. Why else would he think himself a suspect?
— I think he's a suspect.