SNOPES:

The claim that the United States had 251 mass shootings in the first 216
days of 2019 originates from data collected by the Gun Violence Archive
(GVA), a non-profit organization that tracks gun-related violence in the
U.S. The GVA counts any incident in which four or more people were shot
and/or killed. Also, the GVA list includes ALL incidents of gun
violence, meaning that they dont exclude incidents involving gangs or
domestic violence:

GVA uses a purely statistical threshold to define mass shooting based
ONLY on the numeric value of 4 or more shot or killed, not including the
shooter. GVA does not parse the definition to remove any subcategory of
shooting. To that end we dont exclude, set apart, caveat, or
differentiate victims based upon the circumstances in which they were shot.

GVA believes that equal importance is given to the counting of those
injured as well as killed in a mass shooting incident.

https://www.snopes.com/fact-check/25...ootings-in-us/

On Sun, 1 Sep 2019 16:11:53 +0100, Bod wrote:

SNOPES:

The claim that the United States had 251 mass shootings in the first 216
days of 2019 originates from data collected by the Gun Violence Archive
(GVA), a non-profit organization that tracks gun-related violence in the
U.S. The GVA counts any incident in which four or more people were shot
and/or killed. Also, the GVA list includes ALL incidents of gun
violence, meaning that they dont exclude incidents involving gangs or
domestic violence:

GVA uses a purely statistical threshold to define mass shooting based
ONLY on the numeric value of 4 or more shot or killed, not including the
shooter. GVA does not parse the definition to remove any subcategory of
shooting. To that end we dont exclude, set apart, caveat, or
differentiate victims based upon the circumstances in which they were shot.

GVA believes that equal importance is given to the counting of those
injured as well as killed in a mass shooting incident.

https://www.snopes.com/fact-check/25...ootings-in-us/

Essentially they co mingle every beef between drug dealers in inner
city street corners with a school shooting like they are all the same.
The cops don't really even investigate those drug shootings unless
they are there watching because otherwise there are no witnesses thus
most go unsolved.