Seven years later, Barron is standing in the Franklin Road Academy gymnasium, watching Matthew, and so many others like him, doing what she always dreamed he would - playing with his friends. So many friends.
Predators defenseman Roman Josi is there too. He may have a higher profile than anyone else here on this day, but to the kids, he's just Roman, their buddy.
"I think every kid deserves to have friends," Josi said. "As a kid, you want to be around your friends and Best Buddies makes that possible."
Josi learned about Best Buddies when Trotz was his coach, and he's taken an interest ever since. But this past Monday in a gym south of Nashville, Josi, with the help of the Nashville Predators Foundation, partnered up with Best Buddies Tennessee to make sure events like these keep happening.
"It's such a great thing; those kids are amazing," Josi said. "They're so much fun to be around, so that really inspired me, and I really wanted to help."
Barron has worked to transform the Best Buddies Tennessee office to one of the largest state operations in the country with more than 100 schools involved. Professionally, Barron is humbled and proud of the growth the organization has seen in the Volunteer State in such a short amount of time. And personally?
"To see that I don't have to worry now about Matthew growing up, I know he's going to be OK," Barron said. "As a parent, that's a really great feeling to have because that's not something I had 10 years ago when he was born."
The pilot program Josi is involved with is helped with a grant from the Preds and has three schools on board, focusing on group inclusion at the elementary level. And as the All-Star blueliner played basketball, hula-hooped, drew pictures and smiled for the entire afternoon, Barron held back tears.