October 25, 2023 11:15 pm Former ATF agent sheds light on Maine mass shooting investigation Scott Sweetow, a former agent with the Bureau of Alcohol, Tobacco, Firearms and Explosives, talks about the shooting that killed 22 people in Lewiston, Maine. US & World Videos 3:55 Forecast: Not a bad weekend ahead 2:06 Two Medford middle schools have lead in the water 2:17 Boston hotel workers threatening to walk off the job in major escalation 0:24 Off-duty nurse helps child not breathing in car in Boston's Jamaica Plain 2:03 Parents and teachers demand action as mold problems plague Cape Cod elementary school