. >> dan peterson was late for his own memorial service. four years late. in 2016. >> some little girl, who was four years old, said hi, old person. [laughter] >> reporter: that little giver of life was norah wood. norah met dan during his darkest days. as we first reported in november of 2016, dan's wife had just died. he was severely depressed, and out grocery shopping for himself here in augusta, georgia, when norah spotted him. as you can see on the security footage, she randomly reached out to this total stranger and then had the audacity to demand a hug. >> i said, a hug? absolutely. [laughter] >> reporter: norah got her hug and then asked her mom, tara, to take a picture of her with her new friend. >> his lip quivered and he teared up, and it was just sweet. >> i said, you don't know. this is the first time, for quite a while, that i've been this happy. >> reporter: after we first told this story, we thought for sure the love would fade. but norah and dan saw each other at least once a week. he was there for her kindergarten graduation. and she was t