I regularly dump on the mainstream media, especially the New York Times, for getting things horribly wrong. So, to be fair I am compelled to point out when the get something right, especially on a topic they usually get wrong.
The only thing I can add is that all of the recent highly-publicized shooting have all taken place where guns are more or less completely illegal — a courthouse (in Atlanta), a high school (in Minnesota), a church service in Wisconsin, and Chicago. These laws obviously didn’t prevent the shootings. In fact, a study by John R. Lott, Jr. and WIlliam Landes found that is is extremely rare for a multiple-victim public shooting to take place in a state that issues concealed-carry permits; those that do take place in such states tend to occur in locations when carrying guns is illegal (courthouses, schools, churches, etc.).