 It happened just before 7.30 in Garfield Park yesterday morning. Noah was walking with her dog when she became trapped under the branch, which broke off a 100-year-old tree. Three different witnesses told police they heard multiple loud cracks before the branch fell. DDOT says we may never know what caused this tragedy, but WTOP's Cheyenne Corrine is hearing from a local certified arborist who says that he has a good idea of what may have happened. This is just an unfortunate and definitely preventable incident.