away. covered in blood. >> translator: they're all civilians and children this man shouts. the daily bombardment has forced many here to live underground. >> between january 2014, march 2015. they reported 3,000 civilian deaths. while at the same time, recording the deaths of 35 fighters. that is a 99% civilian casualty rate. >> despite what appears to be overwhelming evidence, bashir al assad told the bbc in february his forces do not use barrel bombs. the amnesty report criticizes rebel forces accusing them of war crimes. mortars and rockets fitted with gas, hell cannons, killing civilians last year.