A brief question for Riot about the Jhin and his impact on the lore of League.

Did jhin 'actually' kill Garen/Sona/Zed and Vi in the 'lore' of the game? or are they all still alive, since from my understanding, most of the trailers and events you throw at us with videos and content tend to be directly related to the story, are we playing champs that are technically dead? Something like Kindred where, we dont know if she's real or not because she's based off of a fairy tail told by others, could we be playing champions who are 'recreated' in the rift from their past history/tales of them and what not? i just thought it interesting since, because of the way time and space seem to work in the Rift, it makes me believe that they are just "Figments of their ideals" when they were alive. Just a thought i had recently.