Hi
i'm new here. I want to ask about some Superman comics I had when I was a child. I don't rememeber much; what I do remember is that Superman was kinda blacking out, and killing people, or thinks he was killing people, or finding himself dresssed in a weird costume, i think. And then he took an oxygen tank (he wore it on his belt if I remember correctly) and left the Earth. I've been searching on the net but haven't found anything. Does anyone know what number these comics are, or what year were they published? thanks in advance