In my previous three parts of this cyclic Article (Part- I, II and III), I had presented some characters named as A to E. Their tragic stories are not imaginary ones, but they all are based on facts. As I had made clear formerly and hence by giving no real names, I have said what I had to. But, here, in this last and final part of my subject above, I’ll not hesitate to write openly and specifically as it is the historical fact and also known to the most of the world and particularly to Shi’ite Muslims – the