The U.S. assassinated an Iranian major general in January claiming it was necessary to stop an imminent attack.
Israel has similar claims against Iran. That's why they are also assassinating Iranian scientists that are linked to their nuclear program.
Iran has similar claims against MEK (Mujahedin-e-Khalq) organization in Paris. MEK was listed as a terrorist organization by the UN, EU, and the U.S. until a few years. Hence the failed attempt from Iran that you linked here.
I think assassination of a scientist like that isn't justifiable, for the same reasons that Iran's attempt to target MEK organization isn't justifiable.
There are very bad actions by the US military. This is not one of them.
> Iran has similar claims against MEK (Mujahedin-e-Khalq) organization in Paris ...
That they are developing nuclear weapons to use against Iranian civilians? Because that's the claim of the US and Israel, a claim that's essentially validated by the Iranian regime. The mission of this person was to develop and maintain nuclear strike capability ... Netanyahu nor Trump see themselves or their power threatened by an Iranian Nuclear bomb. They see large amounts of civilians threatened by a nuclear weapons, weapons essentially in the hands of racists.
So no, I don't think anything about these claims is similar.
And that is supposed to give the regime in Iran the authority to carry out terrorist actions, in a crowd of civilians, on foreign soil? Foreign soil where other terrorists have randomly killed hundreds of civilians, again for racist reasons? Good luck with that argument ...
All attacks against these weapon development engineers and managers were pinpoint strikes.
So no, I don't think the opponents here are very comparable, neither in reasoning nor in methods.
https://www.politico.eu/article/terror-trial-in-antwerp-will...
TLDR: the Iranian government attempted to commit a terror attack with a "playstation" (a 20kg explosive designed to set off other explosives). They were going to set it off in the middle of this crowd:
The EU is not pleased, because, well how many terror attacks have happened on French soil with dozens of victims in the last 10 years now? 5? Of course, the EU is mostly concerned about the reaction of France (such as unlawfully suspending the Shengen accords for 5 years and counting, and that's just their most "in your face" violating of EU policy, it's very far from the only one), but until this sort of stuff stops ...