About BK
he thinks that his brother is red john that's why he killed Jason Lennon after he asked him "Did you see me before" he wants to make sure if his brother is the red john . but when JL said No
he thinks you won't avail me anymore.
he is certainly not the red john and neither his twin.
A question for you when the officer asked gale Bertram do you know brett partridge?
he answered " yeah slightly" where does he know him?