Can the class clown catch a class killer? That's the question posed on this week's new episode of The Mentalist.

Titled "Something's Rotten in Redmund," the installment will find the team looking into the murder of a popular English teacher. Elsewhere, congratulations will be in order to Rigsby, while Cho will try and keep Lisbon from uncovering his relationship with Summer.

Watch the official preview now:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.