A project for homeless people called Underheard gave Daniel Morales a prepaid cell phone and helped him create a Twitter account. Daniel Morales got the idea that he could use Twitter to find his daughter, 27-year-old, Sarah Rivera.

He posted his cell phone number, Sarah’s name and a photo of her at age 16. The message spread through his Twitter followers and through their social networks. It reached her and she called him the next day.

Two days later they met in Bryant Park. Morales saw his grandchildren, ages four and one, for the first time.

"This is an awesome moment, I am rejoicing," said Morales.