99.9% Gale Bertram is the first suspect to leave the 7 list!

Prove:
http://www.spoilersguide.com/the-mentalist/season-6-spoilers-one-of-red-john-suspects-will-be-cut-ou....
1 Less suspect from the list of 7 by the end of the first episode in season 6

http://www.tv.com/shows/the-mentalist/the-desert-rose-2880260/cast/
There are 2 of the suspects that play a role in that episode, Bret Partridge and Gale Bertram, but BP is only guest star (meaning he will only say "bla bla died.." and that's it), while gale bertram is recurring, and will be the only recurring star that is on the list in that episode = bye bye GB.