EDITED
@Laura @Brian please move the next posts. Morality and legality, or something like that, please. Inés.
WriterAlexis
Of course it was illegal.
Apart from the fact that a government kills a person that has not been convicted, the US violated the territory (air space) of another country to carry out that strike. That makes it most definitely illegal.
Imagine China doing the exact same thing over / in the US. The outcry would be deafening.
But that is exactly the point. Things can be illegal and still be morally justified and vice versa.