February 26, 2019 12:00 am How a Simple Drug Test Could Have Saved a Marine's Life NBC 7 Investigates reporter Mari Payton explains why fentanyl won’t show up on most drug screens administered by public and private companies. US & World Videos 2:45 La Jolla Concours d'Elegance classic race cars 1:39 Troops Endure Hyper-Realistic Training 2:07 New study links consuming red meat with dementia 2:05 Police find, return dozens of abandoned Amazon packages 0:28 A Vermont state trooper plunges into icy pond to rescue 8-year-old girl
