marshall's colleague, tony crawford, assumes the lead position.y drove alongside the truck to get a closer look. >> and i saw the face, and the best i could remember is they had a smirk on their face. little funny grin on his face, and looking at me from the truck. >> he recognized john manard but was toby with him? and there, riding shotgun, yes, she was. and this is toby. >> coming up! >> he was walking straight at me. and he stuck out his hand, and he said. i want to be your next dog handler! >> an extraordinary conversation. toby young opens up at about it all. from how things started with john manard. >> this is something i've been craving forever. >> to the moment that she realized that she might have made a horrifying mistake. >> i thought, i don't know who this person is! >> when dateline continues! ask your doctor about #1 prescribed, once-daily ingrezza. learn how you could pay as little as zero dollars at ingrezza.com ♪ ingrezza ♪ hey all, so i just downloaded the experian app because i wanted to check my fico® score, but it does so muc