I have doubts about Gale Bertram being one of Red John's men. The main reason is in the 3rd season, final episode titled "Strawberries and Cream (Part II)".
In this episode the suspects are:
- Brenda Shettrick, CBI Media Relations
- Osvaldo 'Oscar' Ardiles, Assistant District Attorney
- Gale Bertram , CBI Director
- Craig O'Laughlin of the FBI
Jane also suspects LaRoche, but only Craig O'Laughlin tried to kill Hightower. If Gale Bertram was one of the Red John's men, why didn't he try to kill Hightower?