If Tuscon shooter Jared Loughner had only had 10 rounds in his gun the day he shot Rep. Gabrielle Giffords, 9-year-old Christina Green would “probably” be alive today, Vice President Joe Biden told the National Association of Attorneys General in Washington, D.C. today.

Christina was one of six people killed when Loughner opened fire on a crowd gathered to meet Giffords.

Asking for feedback from the gathered attorneys general on the administration’s proposals to reduce gun violence, Biden argued that high-capacity magazines mean more gun deaths.

“The number of rounds used at Sandy Hook is astounding,” he said. “I’m not allowed to tell you, because the investigation is still going on, but it was well beyond ten rounds in those clips.”

A consensus “has been reached” on what needs to be done to reduce gun violence, Biden said, and one of those is universal background checks on those wishing to purchase guns.

“What value is it if one, two, three, five million people under the law demed incapable of owning a weapon— what good is the system, if their names are not in the system? It’s bizarre,” he said.