I think it more likely that he has got suddenly wealthier. His death after making his first remarks would have highlighted the likelihood of both deaths being assassinations. His information is already out there, even if he denies it now. Killing him would not be profitable and entails a risk of discovery.
Yup.
They need to invoke James Carville’s “Nuts and Sluts” attack on him. Make him out to be a kook. The media, as always, eager to assist.