all the hoynes.felt like he had not done what he was supposed to do. as a father, because he did not protect her. he did not keep her safe. >> our dad would sit at the edge of his bed and just think about robin. and wait for her to walk down the hall. every day. >> of course they did not know, none of them did, that the solution was sitting right there in plain sight. until somebody close the lid and filed it all away. >> coming up, nearly 20 years would go by without a break, until a fresh pair of eyes focused on one particular photograph and saw something new. >> i thought, it couldn't, be it couldn't be. >> when dateline continues. w patients are more than their disease. that's why, at novo nordisk, we've spent a hundred years developing treatments to help unlock humanity's full potential. these are the greats: people living with, thriving with — not held back by — disease. they motivate us to fight diabetes and obesity, rare diseases and cardiovascular conditions, for generations to come. so, eve