Top Story with Tom Llamas - Feb. 18 | NBC News NOW

ON THE RUNWAY. AIRPORT, A JETBLUE PLANE MAKING AN EMERGENCY LANDING AFTER REPORTS OF SMOKE IN THE COCKPIT. THE FAA SAYING PASSENGERS HAD TO EVACUATE USING SLIDES.THE AIRPORT IN A GROUND STOP. THE BREAKING DETAILS JUST COMING IN TONIGHT. NEW POSSIBLE LEADS IN THE NANCY GUTHRIE CASE, THE LIST OF NAMES AND PHOTOS INVESTIGATORS ARE NOW SHOWING LOCAL GUN SHOP OWNERS THE DNA GOING THROUGH GENETIC TESTING RIGHT NOW.COULD THAT LEAD TO A SUSPECT IN A MATTER OF DAYS, WE BREAK DOWN HOW THE TECH WORKS, PLUS WHAT INVEST ...