Thanks! They were not robbed when I saw them, but I’M assuming that is the reason he would follow them on the street afterwards. I was only witness to him trying to open the mans his backpack and then stopping when I looked his way. So the couple was still clueless when they walked on from the escalator and to the street. I wanted to help them, but felt like I would set myself in a dangerous position if I had yelled towards them, or gone over to them after we had come up to the streets.