Communities in Bend, Oregon, are mourning following a shooting at Silver Rail elementary school. A 16-year-old male opened fire at the school, resulting in the deaths of four young students and one teacher. NBC News correspondent Liz Kreutz is reporting from the scene, and law enforcement and intelligence correspondent Tom Winter is providing analysis of the ongoing investigation. Details surrounding the shooter’s motive remain unclear at this time, and authorities are working to understand the circumstances that led to the tragic event. The shooting has reignited the national debate on gun control and school safety measures. Vigils are being organized to honor the victims and support the affected families in Bend, Oregon.