Madame Elodie is Jhin's target.
It hit me like a sack of potatoes on Reddit.
Who is Madame Elodie? A self proclaimed (as far as we know) Ionian princess who left home to see the world.
What state is Ionia in right now? A rather fractured one where groups are acting in their own interests and rivalries are getting more apparent.
What do assassins do? Take out important figures.
It was never about Camille (though this would impact her as a death of an important figure from Ionia in what's basically the Piltover slums makes trade relations bad and could harm Piltover progress)! It was about who is worth being targeted by Jhin as an assassin. Elodie fits the bill!