How he allegedly got in her building. And police revealing they were already tracking him before the killing. Could it have been prevented . The potential historic Flash Flood Threat on the east coast. Our exclusive aboard a u. S. Nuclear submarine for a critical missile test launch remembering a beloved actor from the harry potter movies. And the eyepopping new las vegas attraction before the grand opening, we go inside the Sphere Announcer this i Nbc Nightly News with lester holt good evening and good evening and welcome. As we come on the air tonight, the country is careening toward a shutdown of the federal government, less than 72 hours from now, with congress so far unable to make a deal to avert it the deadline Sunday Morning at 12 01 eastern time thats when Discretionary Spending by the government, absent a spending deal, will stop that includes no paychecks for federal workers, no government benefit payments, including some for veterans, and the closure of federal parks and mo