Watch The Mentalist Season 3 Episode 21 online via TV Fanatic with over 5 options to watch the The Mentalist S3E21 full episode. Affiliates with free and paid streaming include iTunes, Vudu, YouTube Purchase, Google Play, and Verizon On Demand.
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When a prison guard is killed outside of a jewelry store, Patrick Jane suspects one of the guard's inmates is the killer. Rigsby must confront his father about the murder.