the government of seoul is increasingly concerned, promising to respond to any aggression with force. it s unclear how long it will take for north korea to get the nyongbyon facility up and running. north korea says in part it s for electricity. the problem is the plant has never been attached to the power grid. matt? richard engel, thank you very much. meanwhile, there is some new information in the shooting death of colorado s prison chief and natalie is here with details on that. good morning, matt and savannah. officials now admit the suspected killer in the case should have been behind bars at the time, but he was released due to a clerical error. i am confident that they will fix the problem going forward and that it won t happen again. reporter: strong words from the district attorney s office after a colorado court admitted that evan ebel was released from prison four years early, he s accused of murdering tom clements, colorado police chief, a after getting