re: #9 Destro
Hizbullah and Iran have both indicated a willingness to hit Israel and its interests around the world. They did so in Buenos Aires 18 years ago to the day (85 dead, 100+ injured in that attack on a JCC), and have been working towards other attacks - a bunch thwarted in the past few months in places such as India, Thailand, and Cyprus among others.
It’s not out of the realm that they recruited a local that blends in to carry out the attack, or someone with dual citizenship. Suicide bombing fits their profile; the target fits their profile; and the date suggests that Hizbullah/Iran was behind the attack.