WARNING - STORY CONTAINS GRAPHIC IMAGES<br/> <br />A grim scene in Aleppo.<br/> <br />Activists say at least 65 bodies have been found -- many apparently shot in the head with their hands bound.<br/> <br />The video could not be independently verified by Reuters.<br/> <br />Rights groups says the death toll could rise as high as 80. It is not clear who had carried out the killings.<br/> <br />Both sides have been accused of carrying out summary executions in a conflict which has claimed more than 60,000 lives.
