Wow. I just minutes ago (now yesterday, as this post came from Facebook as it was happening) I started hearing helicopters in the air around the apartment complex, and when I got up and looked out, I saw the main drag (Murfreesboro Road) approaching the intersection at Hobson Pike at a total stand still. I Googled the location, and saw there was a school shooting at Antioch High School which is just beyond the opposite corner from where I am. Apparently there are two students dead after a student opened fire in the cafeteria.

Below: Top Image is out my window looking at the backup which leads up to the intesection.

Lower image is the helicopter view of that intersection.