I prefer to use the term "Spree Shootings" because it better describes the real issue.
Gang-bangers shooting it out in a turf war or insignia disagreement is not a spree shooting, despite the fact the certain members here want it to be so, especially if the gang-bangers have brown or dark skin.
A street party getting out of hand, arguments springing up, fights breaking out resulting in someone pulling out a gun and shooting people is not a spree shoot
Butt-hurt father blowing away his family because his wife won't let him have custody of this kids is not spree shooting.
However...
A random nutter entering a grade school and using a semi-automatic to kill two dozen 6 to 10 year olds is a spree killing.
A random nutter entering a place shop or a shopping mall and using a semi-automatic to kill 10+, 20+, 50= shoppers is a spree killing.
A random nutter entering a place of worship and using a semi-automatic to kill 10+, 20+, 50= worshipers is a spree killing.
A random nutter entering his former place of business and using semi-automatics to kill dozens of former colleagues is a spree killing.
One of the reasons I no longer actively participate in this thread is because the idiots, and the bigot and racists (we all know who I'm talking about) who want to make this about race and how all dark-skinned people are bad people. The way want to endlessly agonize over every piffling piece of irrelevant minutiae regarding the definition of what is, and is not, a mass shooting, instead of doing what they should be doing, agonizing over the senseless killing of innocent people including school children, and recognizing that the biggest contributing factor in all these spree killings is the unrestricted access to powerful automatic weapons that were purpose-designed to kill al many people as possible in the shortest possible time and were only ever supposed to be used in combat, by the military, when confronting an enemy on the battlefied.