Water tower apparently not secured. Has potential view over trees to stage.
Multiple people hit. Either the guy on the building is a terrible shot and a good shot all at once, or possible second shooter.
Possible scenario, two shooters, one on tower (real shooter) and patsy shooter on roof. Patsy does shoot, hits a few innocent bystanders and gets hosed. Real shooter misses shot at Trump then bails, could have been posing as, or actual media personnel, easy exfil.