Lisbon gets accused of murder on the episode "Red Badge." As you might expect, she doesn't react well to the news.
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A senator's intern is killed on "The Scarlet Letter." Watch the official CBS promo for this episode of The Mentalist now.
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Enjoy this clip from The Mentalist. It's courtesy of the January 13 episode titled "Red Rum."
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The 11th episode of The Mentalist is titled "Red John's Friends." Enjoy this official preview for the latest installment.
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Patrick Jane's past returns in this episode of The Mentalist. Enjoy the official CBS preview for it.
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Here's a promo for the November 25, 2008 episode of The Mentalist. It's titled "The Thin Red Line."
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The Mentalist Quotes

I'm just poking at you. It's awfully instructive.

Jane

Jane: I don't want you involved.
Lisbon: I am involved.
Jane: Not anymore.