I think I've met Jhin's parents somewhere...

(Crazy masked man that loves killing) + (crazy lady with guns that also likes killing) = New crazy champion with guns and a mask who likes killing?

I know the argument can be made none of them should be connected since they all kill for different reasons. Shaco does it for the luls, Jinx is more collateral and this jhin guys see's it as a more serious work of art. But tomato tamato they all like killing and the the elements are all there.