I think the blond-haired white woman in this case was the one who was vacuuming her van at a gas station. Gas stations in this area are not typically owned by Jews.
Looked to be an Hispanic woman on the TV, but never mind. All it would take would be for the shooter to think the owner was a Jew, or knew a Jew, or had stood next to a Jew once upon a time.
This is not a normal individual we are talking about, but a total nut case. Quit crediting him with very much rationality.