So the two videos - there are two different white men that follow her. In the first video, the man has a white shirt and khakis on and is heavy-set. The second video of creeping dude, he is noticeably smaller than the other guy AND he has darker pants on.
Two different white men.
In the first video, Hannah is seen walking with someone in white shorts and a gray shirt. This is important because... in the ABC news version of the second video, in the foreground a guy with either dreadlocks or a doo-rag walks by with white shorts and a gray shirt. If you follow him in the video, he actually doubles back - he heads back towards the background and walks in the same direction as Hannah.
What stands out is that both dreadlocks and creeper dude both act odd toward her and I would not be surprised if we find out they were prowling together.
If you watch the ABC video, you see dreadlocks pause just as he is about to enter the view of the camera. A few seconds later, creeper guy enters the camera view as well and goes over to take post in the door. Meanwhile, dreadlocks looks over in that direction.
ABC Video (watch in full screen)