Well, technically speaking, I also killed the character that used to represent me, but it wasn't a Fursona, since this already happened way before I even came aware of the furry-fandom. He represented me, as I moved on from literally swinging plastic swords in my room to having all happening in my head.
He never had a face, since I couldn't make up my mind how he (me, but older) would look like. At some point, his story was just over. He died due high age. The same happend with my other old characters at the time (basically the two dragons from the Dragonheart movies), the only Survivor of this time (pretty much my childhood) is Speyro (which is obviously based on Spyro the Dragon, from the games for the original Playstation I once played)
Yeah, I pretty much adopted every not completely evil dragon I came across back then, it is a bit embarrassing for me, it is what it is..