http://www.spoilertv.com/2013/11/the-mentalist-episode-607-great-red_4.html

To people are wondering if Stiles, Haffner and Sheriff McAllister are dead or at large because of thier pictures being on the board, by watching the promo, i think they are dead because Rigsby says "Red John brought in a bomb to kill Jane and the other suspects".  When he says this he points to the pictures of Stiles, Haffner and McAllister, implying that they are dead... ? I think

Watch from 0:08 on the link ^ see what you think.