goes to the chinese island where that balloon was launched from what she found there dramatic video of an off-duty chicago police officer shooting and killing a man trying to rob her, right after she warned him she would kill him. i will kill you watch this fema finally arrives in ohio after that toxic train derailment, as we go inside one of the labs testing the county s well water is it safe plus, how these dogs are saving lives. can they find our correspondents buried in the snow? announcer: this is nbc nightly news with jose diaz-balart. good evening we begin with some sad news former president jimmy carter, the country s longest living president, is back at home in plains, georgia, tonight after a hospital stay. but he is now foregoing medical treatment and entering end-of-life hospice care we don t have much detail on the former president s health issues, but the 98-year-old has been in and out of the hospital in recent years and fought off cancer well int