It's been a week since leading conservative activist Charlie Kirk was assassinated. It's been a hard week, especially for those who were closest to him. A study published by the Cato Institute -- not a bastion of the left -- found that political violence in America, while having serious ramifications, in its frequency is rare. As Jack Nicastro documents in Reason, "[m]ajorities on the left and on the right denounce political violence and its celebration." Charlie Kirk was not a friend to us, but he is a human being.