Ian Mercer, the father of the man who shot and killed nine people and injured nine others at a community college in Oregon last week told CNN Saturday that, had gun laws prevented his son from accessing the guns, the incident wouldn’t have happened.

Authorities said that the shooter, Chris Harper Mercer, had 13 guns linked to him that were all acquired legally.

His father questioned how he was able to access those weapons.

“How on Earth could he compile 13 guns? How can that happen?” Ian Mercer said on CNN. “They talk about gun laws, they talk about gun control. Every time something like this happens, they talk about it, and nothing is done.”

“I’m not trying to say that that’s what to blame for what happened,” he added. “But if Chris had not been able to get a hold of 13 guns, it wouldn’t have happened.”

Watch his comments from CNN: