Transcript for 'Fist Bump Kid' scores 1st points in basketball game
Finally tonight here, America strong. Millions saw him giving fist bumps to his heroes, and years later, it turns out, he's the champion. It was the moment six years ago, seen by millions. Liam Fitzgerald, waiting for his favorite team, the Boston Bruins. One by one, Liam giving them a fist bump. The moment going viral. And just like his beloved Bruins, Liam is a fighter. He has down syndrome, and battled leukemia for years. Our partners at ESPN's e60 have followed Liam's journey. The practices at home. Nice job. Documenting Liam and his family at the Bruins games. There he is! The fans know him. Liam's parents, bill and Christine. He'd come so far. He battled so much. Has hasn't lost his job. He was given to us to raise, but he was given to the world to love and I see that come out and I see the Bruins love him and he brings out the best in everyone. And tonight, all these years later, a milestone for Liam. He's in his first starting lineup for the melican middle school basketball team in northborough, Massachusetts, and about that fist bump -- Do you do the fist bump before these games with the kids? Yes, I always do, to pump them up and win every game. Liam, number 11. Liam is a manger on the team and his coach says his hard work and dedication earned him the starting spot. And here he is, scoring the game's first points. Nothing but net. The crowd cheering his name. Liam, Liam, Liam! Liam celebrating that basket and his other victory -- now cancer free for seven years. Wow, we are roofting for Liam. What a fighter. Nothing but net.
This transcript has been automatically generated and may not be 100% accurate.