None of them has produced a definitive answer.

They may never be answered.

The people who could answer them are either dead (Jason Barclay), demonstrably unreliable (Bourdin), or in a position where full candor would be personally costly (family members).

The case exists in the permanent present tense of the unsolved — a state in which the questions remain active without becoming answerable.

This is genuinely uncomfortable.

Human beings are narrative creatures.

We want stories to have conclusions.