I think LE did a great job - this murderer was very smart and had so many people convinced, kudos to LE for seeing through his lies. I think they knew that as long as many believed it couldn't be him, they couldn't aggressively and openly pursue that scenario.
As to motive, I agree with Tortoise and would add, perhaps since Helen was now a public figure, to have the world know she'd left him wasn't something he was going to tolerate. I keeping thinking of that phrase in his letter to her, "we promised each other 30 years" and finish the sentence with 'and I'll kill you if you break that promise'.
As to motive, I agree with Tortoise and would add, perhaps since Helen was now a public figure, to have the world know she'd left him wasn't something he was going to tolerate. I keeping thinking of that phrase in his letter to her, "we promised each other 30 years" and finish the sentence with 'and I'll kill you if you break that promise'.