To all that don't know mar means disfigured or to disfugre to spoil something or somebody.This is another thing that is the same with the killer form the movie Red Dragon with Hanibal Lector where the serial killer that they try to catch is dissfigured probably like RJ and another thing that is the same is the blind girlfriend Rosalind Harker is Rj girlfriend and in the movie the killer named Toothe Fairy also has a girlfriend that is blind.The last and most important thing is the William Blake connection the Tooth Fairy is transcending in to The Great Red Dragon which is a painting of William Blake and in the mentalist the next episode is called The Great Red Dragon and Tyger Tyger is also a poe of William Blake. 

mar  (mär)tr.v. marred, mar·ring, mars. To inflict damage, especially disfiguring damage, on.2. To impair the soundness, perfection, or integrity of; spoil.n.A disfiguring mark; a blemish.

Pls watch the movie Red Dragon it may contain clues to Red John's identity and plus its a great movie just like any movie that has Antony Hopkins in it!!!

http://www.imdb.com/title/tt0289765/