My two “go-to” theories are “Muslim” or “Queer.”
These generally cover most mass shootings. Occasionally you get a mental case or a robber, but most seem to be perpetrated by Muslims and Queers.
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With all due apologies to everyone named Esteban, but that is one queer name.
Esteban = Steven
i.e., yet another Steve.
A very common name in Hispanic countries, as Steve is here.
"Whoa, don't go there..."
It's Spanish for Stephen. Pronounced Ess-tay-ban.