The family and longtime girlfriend of murdered UNC Charlotte student Riley Howell said they are "beyond proud" of his sacrifice.

But they are grappling with how to go on without him. 

Howell, 21, was one of the two people killed in a campus shooting Tuesday at the University of North Carolina at Charlotte that also left four other students wounded.

Charlotte-Mecklenburg Police Chief Kerr Putney hailed the environmental studies major as the "first and foremost hero" of the shooting, saying he "took the fight" to the alleged gunman and got him "off of his feet."

"We are just beyond proud of what he was able to do," Natalie Henry-Howell, Riley's mother, told "Today." "While kids were running one way, our son turned and ran towards the shooter."

"If he was in the room when something like that was happening, and he had turned away, he wouldn't have been able to live with himself," his mom added. 

Younger brother Teddy, 14, agreed. "There was no question, there was no doubt that he would have done what he did," he said. "He put others before himself...He always has."

Teddy said that while people around the country are now recognizing Riley's courage, "he's always been my hero." 

Lauren Westmoreland, Riley's longtime girlfriend, said she is also proud of the young man with whom she had talked about marriage.

But she said she is devastated

"Just tell people you love them," she said. "That was the last thing that I got to say to him was that I loved him."