Interestingly, the DOJ version also causes mass killings that made minimal firearm involvement to be on the list.
It’s why the 7th deadliest “school shooting” was in the mid-18th century, and only one person was actually shot, with the rest killed by melee weapons.
The majority accepted is 4 or more injured or killed, not including the shooter (gun violence archive).
The DOJ version is 4 or more killed, which is just the mass murder definition with a shooter, leaving out a lot of incidents.
In either case though, the motive is irrelevant because its not going to be known at the time.
Interestingly, the DOJ version also causes mass killings that made minimal firearm involvement to be on the list.
It’s why the 7th deadliest “school shooting” was in the mid-18th century, and only one person was actually shot, with the rest killed by melee weapons.