Complex sentence: After a helicopter sprayed a cloud of tear gas, troopers shot indiscriminately some 2,000 rounds of ammunition and after the shooting stopped, scores of prisoners were beaten and tortured, hundreds of whom were seriously wounded and initially denied medical care.
Split into simpler sentences: After a helicopter sprayed a cloud of tear gas, troopers shot indiscriminately some 2,000 rounds of ammunition. After the shooting stopped, scores of prisoners were beaten and tortured, hundreds of whom were seriously wounded and initially denied medical care.