Why should Saddam Hussein be executed?

Hmm...I've been thinking about this. I think that Saddam should be punished because he did a lot of things which have violated a lot of people's rights and the commandments of God. Come to think of it...Is is really right? I know that he did bad things and all but are we powerful enough to execute a fellow human being? Who are we to punish a mere human being who co-exists with everyone and everything on earth? Are we really qualified to do it? Shouldn't God be the one to dictate all of these? That is also against his own rights. I think it's right to execute him but I am just wondering about some things. It really confuses me. Well, Only God knows the answer to these questions of mine. I'm just glad that Saddam's life has already ended so that the people will no longer complain or protest about him. ^^ Let there PEACE and not WAR!