2 Questions About Jhin,

One, why does Jhin only say certain special interaction quotes with the High noon Jhin skin? I'm very curious, is there a reason, like high noon Jhin is actually Jhin rather then just a random outfit thrown onto him or a alternate dimension version of him? (like project Yi isn't really Yi. [Though I might be wrong :/]) Is it him at a certain point in time/outside the league? Cause with that skin he says multiple things to certain champs When he kills them with ult that he doesn't say with his default skin.

Two, I already know that there are some important lore between Jhin, Shen and Zed coming out soon but what are his relations with Garen, Sona and Vi? Why'd he "Kill" Them?

That's all I have to ask. Hope a rioter replies .3.

EDIT: For those of you don't know those special quotes, here they are:

When killing an enemy Teemo with ult as High Noon Jhin "I like the way you die, boy."

When killing an enemy Noxian with Ult as High Noon Jhin "Kill Noxians and get paid for it? What's not to like?"

When killing an enemy Yasuo with Ult as High Noon Jhin "It's fun to kill a man. To take all that he had, and could ever have."