The way he aboutfaced last time is a strong indication that he was turned by heavy pressure of the blackmail variety or naked threats to his family. I believe also that he takes Dilantin. That drug, over time, can destroy one’s willpower to the point that one cannot make a decision in the face of opposition.
Is he an epileptic? Seems that would long ago have interfered with what was a highly successful legal career, no? Why else would he take dilantin?