Catapult is similar to the shadow troupe that came in 2nd a couple of years ago. That group's 9/11 tribute to me was more moving than Catapult's. I was almost crying after that, and that group was all children. I did not see how it had much to do with Newtown.
Also, the judges are a little inconsistent. Tellavision did a similar theme (man and woman falling in love, etc.) and it was derided as being too artsy, but this routine and the "artsy" balance ballet were wonderful to them.
My guess, based on the judges: Catapult, DeAngelo and partner, John Wing and the balance duo, but the gospel choir could sneak in there.