. >> after weeks of worrying carol rinehart can breathe a sigh of relief. she's flown around the world from denver to africa to see the man she considered a son was safe. >> we heard the gun. i told my wife, "let's run." >> daniel is an american who was trapped in the violence of south sudan. again, running for his life. >> when i left the country it was at gunpoint. >> daniel was a lost boy of sudan, the name aid workers gave 20,000 boys who fled or were orphaned in the civil war from 1985 to 2005. daniel came to denver when he was 19, when carol rinehart took him under her wing. he got a masters degree and american sit zenship. in 2011 he returned to south sudan. to help build schools this the young nation. violence has returned. >> i never thought this will happen again, because i knew that we have now got our independence from the khartoum regime. >> south sudan, the world's newest country is threatening to unravel. >> my home in jonglei, bor town was attacked. >> from bor, daniel led his wife, 9-month-old son and 100 north through swamp land to safety.