The real culprit for the accuital of murders is the persons who turned hostile and who dodn't even dared to come forward to report crime. They are worst than parasites of this society, i think those persons should be tried and given more severe punishment than the murder. And the second one responsible for all this is our criminal and judicial system, which still is running on rules set in 18th century. Why can't our judicial system go scientific to investigate the murder. And there should be punishment for persons who turn hostile during trial.