Seventy-eight-year-old Tona Herndon of Oklahoma was already vulnerable in every way when her purse was stolen while visiting her husband's newly dug grave.

The thief's mugshot flashed across the TV screen after he was caught and 15-year-old Christian Lunsford recognized the culprit right away. The man was his wayward father, who had been in and out of prison for years since leaving two years after Christian was born.

Then, the 15-year-old did something remarkable.

He took the $250 which his father had given him for his high school band trip and gave it to the white-haired widow.

The story gets better and who better to tell it than Steve Hartman, the best good news reporter out there.

(WATCH the video below, or READ the story at CBS)