The Mentalist: Season 2, Episode 21

2 - 21: 18-5-4

Patrick and the CBI team investigate the death of Noah Valicat; a mathematical genius who was murdered by a gun-wielding clown, who also cuts off the victims index finger. The team speaks to Noah's wife Daphne Valicat (Lucy Davis) and discover that he uses his maths skills as a day trader.