Jhin not a murderer
Ok so might as well add my two cents here. Jhin or if you like the theory on YouTube djinn, hasn't actually killed anyone, he granted their wishes with his powers, see wanted to be the ultimate assassin so jhin took his sense of self as a price, garen wanted a worthy opponent so jhin took his compassion (heart), sonas parents wanted her to be a virtuoso with the ethwal so jhin took son as voice, and go wanted to stop being a criminal so jhin took her security by making her hands useless without her gauntlets. This is jmo but I also view jhin as marksman/support or marksman/assassin Just my thoughts though