Mass shooting around the 4th

Some sources say four shootings some twelve.

That term gets sort of loose these days. Shootings at neighborhood parties or festivals (Baltimore, Philadelphia, Ft. Worth, Highland Park) are called "mass" but I didn't see that term used for a Korean American, her unborn baby and husband, two weeks ago in Seattle and the shooter is known.

 
I suspect race sensitivities have something to do with how shootings are reported. Reporters want to keep their jobs. White on black gets huge national coverage and nation's repentance and reparations are demanded; non-binary or trans shooter (I think there has been 5 recently) will slam shut any reporting on medical care/mental illness or manifesto from the shooter; black on black, ho-hum; black on Asian, silence.

No, we don't have the most frequent mass shootings

It turns out that not only did the U.S. not have the most frequent mass shootings, it was No. 62 on the list, lower than places like Norway, Finland, and Switzerland. There was also no relationship between the rate of gun ownership in different countries and the rate of mass shootings." 

 https://www.dailysignal.com/2019/02/20/the-us-has-the-most-mass-shootings-and-other-bogus-gun-research/?

What the U.S. does have are journalists who don't do research or ask questions. They have agendas and biases.