A string of mass shootings over the past three months as the U.S. re-opened from the pandemic was one of the worst on record, and law-enforcement officials are fearful of more to come.

There were five attacks in which four or more people were killed in public places from March through May, matching the highest three-month total going back to 1966, according to the Violence Project, a mass-shooting database run by two criminology professors…

Continue Reading from the Wall Street Journal

Authors: Zusha Elinson, Luis Melgar, Katherine Riley
Source: Wall Street Journal