“Aggressor”? Is that a grown-up “teen”?
I picked that up too. Less “provocative” than terrorist, lunatic, or home brewed jihadist. Lunatic has my vote since he certainly hadn’t thought things through, fortunately. If he’d set off his bombs first it could have been much worse.
An airport aggressor must be one who is aggressive around an airport. That would make me an airport passivist.