Was GOG was the second villian to kill Superman, if so, who is GOG?

I read about in DC comics, that GOG blames Superman was something?





Who is GOG? Why does he hate Superman, and how did he kill Superman?|||There are a couple versions of Gog. Too much info to type here so just follow the link.





http://en.wikipedia.org/wiki/Gog_(comics鈥?/a>