I'd say this is different from the trolley problem, because, again, unilateral, extrajudicial, extraterritorial assassinations of political opponents are wrong, even if you shout "terrorist!" while murdering

they are always wrong

it doesn't matter if you also did a good thing, it doesn't even matter if the good thing was related: you aren't allowed to do the wrong thing, period, even if you really, really, really want to, even if you think you have a good reason to break the rules and do wrong

and as to your first question, eh, could be for some examples, but it'd be a distraction, as the answer doesn't matter, because the case we're discussing definitely wasn't either one