Bertram was never one of my suspects, to be honest he was the only one that was never a suspect to me. So in the end, if it's him, Heller was still able to surprise me.
Why he was never one of my suspects? Being rationale:
- Because he recited one of Blake's poems in one of the previous seasons, and that was just too obvious.
- He is bald (and it seems a type of bald that doesn't change in 5 years)
- He is (maybe) too tall.
- He appears in some episodes giving interviews to the press, regarding CBI cases, meaning he was a public figure. So, if he was RJ, and if he went to Sophie appointment, he took the risk of being recognized by her, and that seems stupid.
- He seemed to be fooled by PJ several times.
But, in this last episode, I was very surprised having this strong intuition he is the one. It's something in the way he acted, he was different, in his eyes and posture, it was like a curtain raising, he is so false (like RJ should be) he completely changed is personality after PJ talked about the tattoo. All the others reactions seemed ridiculous if they were RJ, the other 4 reactions to Jane were stupid or unconvincing.
I'm now sure it's him.
For those that think that reducing the suspects to only 3 would just be too obvious, I don't agree, reducing suspects one by one has been Heller strategy since the beginning of this season. It was him that reduced the list to 7 suspects. It's just not possibly anymore to surprise us completely and it's more fun to make us think and investigate who could be RJ from the remaining suspects, than give any forced complex twist to the story just to trick us again.
RJ will be more well accepted if he is someone that was close to PJ (but not that close) and tricked him all this time, Bertram also likes show off, he is polite and sinister, and he has a dubious relation with PJ (love/hate), and he his a good actor (Reed Smith is terrible).
