Now, Google has released a heartwarming video of the unlikely reunion.
"People would say you're trying to find a needle in a haystack. You'll never find it," Brierley recalls in the three-minute clip. "It was the needle in the haystack. But the needle was there."
If you're not familiar with Brierley's story, the video above nicely sums everything up. And if you are, prepare to be thrown back into the wonderfulness of a son finally reuniting with his mom.