What happens when Jane loses his memory? He reverts back to his con man persona, as teased in this promo for The Mentalist.
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The Mentalist Season 4 Episode 10 Quotes

Toby: We all loved him like a brother.
Jane: You've heard of Kane and Abel, right?

Cho: He found the victim seconds after his throat was cut.
Jane: That's got to be the worst bachelor party ever.