Knowing more about the neighborhood (thank you, @TinyPizza) and having had more time to think about it, I’m still inclined to see this as a crime of passion. If it was a “kill any Jew” thing, they’d have targeted an area with more Jews. If it was “kill this particular person”, they could have tried to find an area with easier access and less Ring doorbells. If it was premeditated, a gun would be a more likely weapon.

Whether the precise “passion” involved was 'how dare you reject my advances ’ or ‘why do you talk about the suffering of the Gazans during my visit’, I can’t say. But my impression is that it was a spur-of-the-moment thing (poor choice of location and weapon), vs a targeted killing.