the spla had scored a major victory. then, six months after the historic document was signed tragedy struck. >> it was in the middle of the night when the phone call came from one of the commanders. he said your friend's helicopter is missing. >> it was john garang. >> they lost a true hero. he represented the man who had brought peace to all of sudan. we were devastated, we were all devastated. southern sudan was devastated. >> what came to mind, and the question that i asked, did he achieve what he set out to do? and the answer was yes. the rest is history. >> while the comprehensive peace agreement and a powerful spla were garang's legacy, many say they wouldn't have happened without us backing. and in both, lay the seeds of a disaster. part of the cpa deal was that south sudan would benefit from oil profits. billions of dollars were now flowing into the south >> during the 6 years after the cpa was signed, south sudan became one of the most corrupt places in the world. that money could have been used for massive reha