backgrounds of tf pilot and the copilot to talk about what do we know about them that might be significant at this point in. >> all i've seen is the captain was just a flying enthusiast. he flew model airplanes, he had his flight similar later that we've all seen on the news. same thing with the copilot. you need to keep pulling on that thread and dig deeper and figure out is there more to the story. >> if there's an aha moment or a smoking gun on either of them, we don't know about it yet? >> question don't know about it yet. but if there is, i'm confident it will come out. coming up, more on the agonizing wait for answers. ♪ ♪ ben! ♪ [ train whistle blows ] oh, that was close.