By now everyone with an internet connection and even the slightest passing interest in the Bruins or the NHL has seen the video.

Eight-year-old Liam Fitzgerald from Northborough fist bumping the Bruins players as they left the ice after their pregame warmup Tuesday before the game against the Florida Panthers. The YouTube clip had more than 130,000 views before it was removed for copyright reasons and then reposted with the music.

Liam’s fist bumps wound up being a good-luck charm, as the Bruins went on to beat the Panthers, 2-1, in overtime.

As it turns out, this wasn’t Liam’s first trip to the Garden or interaction with the Bruins. After Halloween in 2013, Adam McQuaid found out that Liam dressed as the brutish defenseman and made sure through the Bruins Foundation and Director of Community Relations to get in touch with Liam’s family.

Liam attended a game last season and was the fan of the game on the scoreboard in the third period. Liam repeated that feat on Tuesday.

“You know he’s just a special, special kid,” said McQuaid, who made sure Liam got to meet as many of his Bruins heroes as possible. “My sister had actually sent me a picture last Halloween that he was dressed up as myself for Halloween, which I thought was crazy. And so I just kind of talked to the foundation here and they reached out and I thought it would be really cool to get to meet him in person and get him to a game. And he’s seen that all the guys love having him around. He’s on the bench before the game against Florida there and giving everybody fist bumps. Even the crowd, I think he’s won fan of the game every time he comes to a game. So I think he just kind of has that infectious spirit about him.”

McQuaid and Liam’s family hit it off as soon as they met last season.

“They’re just a really, really nice family,” McQuaid said. “And the first time that I met Liam, he let me hold him and gave me a hug and like he’s just someone you feel good being around. Yeah, I mean it makes you feel good to be able [to help] them come and enjoy the game.”

McQuaid said it lifts his spirits to see Liam before or after a game.

“I guess it’s just a reminder that we’re very fortunate in our situation. … To be able to see someone like that after the game … it’s humbling, I think is the word,” McQuaid said. “That you can bring excitement to somebody’s day and brighten someone’s day in just a simple way.”

“Hopefully,” McQuaid concluded, “it can be something that’s part of a longstanding relationship with the team.”