I think this is the father of a victim. I looked at a still from the video of him reading his statement. It is very sad - he is clearly distraught. I feel very bad for him. I wish he would zip it though, no matter how badly I feel for him as a man. He has no special expertise on the Constitution.
Not only does he have no expertise on the Constitution, he also (clearly) doesn’t give a flying sh!t about the victims who were killed with weapons other than the gun.