I think he was referring to a question asked earlier in the interview. The longer interview on Fox News is around 6 minutes, the twitter clip has 2 and a half minutes.
He says at the start of the video that he hadn't talked to the suspected shooter about Palestine or Israel before, and that he "would have talked him out of it", referring to the Embassy shooting. He also tells the press that voting is more powerful than guns and bombs.
I don't think this guy is very radical but what he said is somewhat different from the rest of the media narrative right now. He at least doesn't say Zionist lines like "Israel has the right to defend itself" or "Bring home the hostages" or whatever.
Most importantly is that he redirects the media narrative to Israel's genocidal action during the interview. His interview places blame on Israel and calls on people to stop Israel.