[s1artibartfast]

Not all mass shootings stem from extremism. Gang violence also falls under the same definition.

Also from the business insider:

"There is no broadly accepted definition of a mass shooting. The Gun Violence Archive defines a mass shooting as a single incident in which four or more people, not including the shooter, are "shot and/or killed" at "the same general time and location."

Another source suggests that death rate from "Islamic terrorism" in the US is somewhere around 1 in 3,500,000. If you presume other types of extremism are similar, there is still a significant difference from the mass shooting rate.

https://www.businessinsider.com/how-many-mass-shootings-in-a...

https://politicalscience.osu.edu/faculty/jmueller/since.html

[tomp]

> Another source suggests that death rate from "Islamic terrorism" in the US is somewhere around 1 in 3,500,000.

Yeah, that can't be right. Or, it can be, if one only takes into account years after 2001, when at least 3000 people were killed, or 1 in 100 000 US residents.

[s1artibartfast]

The 1 in 3,500,000 rate is for years 1975 to 2015 and includes the 9/11 attack. Since 2001, the rate is about 6 deaths per year for a total of 100 over 17 years. This gives a post 2001 rate of less than one in 50 million.

See page 4 of the previously referenced document.

[tomp]

Ah, so you're likely using the annual rate. Parent was using lifetime risk.

[s1artibartfast]

Very good point, I missed that