 The 20-year-old shooter was killed by Secret Service. One other person was killed at the rally, two others critically injured. That shooting prompted swift responses from both sides. Louisiana Republican Congressman Steve Scalise. The way we settle our differences at the ballot box, that's what makes America unique. We cannot tolerate political violence. President Biden called this type of violence sick. Our Bradley Blackburn with more reaction. Before returning to the White House, President Biden condemned the attack.