Washington (CNN) A freshman lawmaker, whose son was fatally shot in 2012, said the moment that the House Judiciary Committee advanced its first gun violence legislation bill in years was "surreal" and "very bittersweet" for her.

"I had been working on this legislation with other legislators and activists and survivors for six years," Georgia Democrat Lucy McBath told CNN's John Berman in an interview Friday on "New Day."

McBath's son Jordan Davis, then 17, was shot and killed in 2012 after a loud music complaint. Jordan would have turned 24 on Saturday.

"I can recall all the times that I sat on the other side of that dais, you know, being in the audience watching amendment after amendment be shot down, so to speak," McBath said. "It was very surreal and very bittersweet."

The bill, HR 8, that McBath championed would require federal background checks for all gun purchases.

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