I am assuming you mean how stupid can people be that confess on tape? Because he could always deny, lie and hope his lawyer can get him off with reasonable doubt? I see someone who made a huge mistake that can see him in prison for years, step up, take responsibility for their actions, turn themselves in and ready to face the consequences. That isn't stupid, that is stand up and I respect that.  We all make mistakes, I respect people who own their mistakes. Cowards lie, deny and blame everyone but themselves and trying to save their own ass.  Which kind of person are you?