The Tampa Bay Lightning won their second straight Stanley Cup title with a 1-0 victory against the Montreal Canadiens in Game 5 on Wednesday, becoming the first team since the Pittsburgh Penguins (2016, 2017) to win back-to-back championships.
Commissioner Gary Bettman handed the Cup to Lightning captain Steven Stamkos.
"We still have the Stanley Cup, that's amazing," Stamkos said.
Stamkos handed the trophy to Victor Hedman, who gave it to David Savard before Killorn got his turn.
Killorn handed the Cup to Ryan McDonagh, who was followed by Pat Maroon, Nikita Kucherov, Andrei Vasilevskiy, Luke Schenn, Ondrej Palat, Tyler Johnson, Barclay Goodrow, Yanni Gourde, Blake Coleman, Brayden Point, Erik Cernak, Jan Rutta, Mikhail Sergachev, Anthony Cirelli, Ross Colton, Mathieu Joseph, Curtis McElhinney, Mitchell Stephens, Cal Foote, Christopher Gibson, Andreas Borgman, Fredrik Claesson, Boris Katchouk, Taylor Raddysh, Ben Thomas, Alex Barré-Boulet, Daniel Walcott and coach Jon Cooper.
Killorn was in skates and full uniform on the Amalie Arena ice for the celebration.
"It's crazy," Killorn said. "I rooted for the Montreal Canadiens growing up. I'm sure I have a lot of buddies that rooted against me but I'm sure they're happy now. Montreal had a great season and I was happy for the city but it's going to be great now for us to celebrate."