JERUSALEM — For decades, Hinda Koza-Culp’s family clung to a black-and-white photograph and a haunting story: Her great-grandmother’s six siblings and parents were all murdered in the Holocaust, their names largely lost to history.

Then last year, Koza-Culp typed her great-grandmother’s maiden name, Litvak, into an online database and discovered something she never could have imagined.

Two of her great-grandmother’s siblings had survived. One of those siblings had a son living in Israel — and he wanted to talk.

Watch "Hallie Jackson Now" tonight at 5 p.m. ET/4 p.m. ET on NBC News NOW for the full segment

“We spent so many years apart, so many years not knowing each other,” Koza-Culp told NBC News. “To take that back, to get some of that joy and love back … the best revenge is living we

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