Johann Nelson was a police officer in South Africa during apartheid . He credits Nelson himself for changing South Africa . Forgiveness was at heart of Nelson 's success , Lochner says . What do you do ? Share your story on your iReport .
Johann Lochner was a police officer in South Africa during apartheid . He credits Nelson Mandela for uniting South Africa . Forgiveness was at heart of Mandela 's success , Lochner says . What do you think ? Share your story on CNN iReport .