The Mentalist detectives work to catch a killer who might be a mentalist, as well, in Crimson Casanova. Here's a still shot from the episode.

The Mentalist Season 1 Episode 14 Quotes

Patrick: Do you know who killed Claire?
Fricke: No.
Patrick: Interesting. He is either a habitual liar telling the truth, or he's an honest man lying.

Mr. Wolcutt: I can make one phone call and your career is toast.
Cho: (decidedly unimpressed) That's impressive. The best I can get with one call is a pizza.