CREON: "The sin, the sin of the erring soul
                 Drives hard unto death.
                 Behold the slayer, the slain
                 The father, the son.
                 O the curse of my stubborn will!
                 Son, newly cut off in the newness of youth,
                 Dead for my fault, not yours." (Pg. 160)

Here Creon admits that he was wrong, and that it has lead to this consequence.  However, would Creon have admitted that he was wrong if this had not happened?  Is there any other way that Creon might have been convinced he did not make the right decision.