The shooting of two National Guard members in Washington, DC, one of whom has now died, triggered a rapid and impulsive response from King Trump. Unwilling to admit that the deployments were and are ill-advised, he has ordered up 500 more troops to further increase security.
Furthermore, having learned that the shooter was an Afghan native (who happened to assist U.S. troops in his own country), Trump initially ordered that the immigration of individuals from Afghanistan will be halted and has now put a stop to immigration from all "Third World countries."
In other words, the actions of a deranged killer have caused our King to increase the number of potential victims in the District of Columbia and to label all individuals from impoverished countries as high risk immigrants. Of course, the white, American men who tried to assassinate Trump and who killed Charlie Kirk, did not trigger such a widespread condemnation. In the face of tragedy, racism is a convenient tool that can be used to provide cover for unwise policies.