"I pulled a baby out of a box," Sowers said on Friday. "That was tough. I had to take a couple deep breaths before I started talking."
"Without him, I wouldn't be where I am today, a U.S. Marine," Rembert said.
Rembert's kidnapping was one of Sowers' first cases with the FBI.
On Friday, he retired while standing next to the now-grown man who's living proof of his career's lifelong impact.
"I think it's the perfect bookend," Sowers said. "To end, seeing him again, it really just puts the final touch to a career."
Rembert told Sowers, "I wanted to thank you for giving me the opportunity of a life."