I think the person that we haven't heard from is Anna. When the voiceover said that they froze on a picture of Anna. ET holds footage until they feel like it will get the most impact. I'm sure this is some footage of Anna talking about the day Daniel died.
Sac, maybe this is what you've been predicting. Maybe HKS has fed ET some footage of ANS taking responsibility for Daniel's death.
However this saga ends, I sure hope ET goes down with this ship!