Hmmm, interesting. But they would have found him creepy had he been futher along the bridge, then turned and walked past them then turn and walk towards them again. That would be creepy! If they'd been planning on meeting someone there, don't you think that person would have shown up, or at least let the cops know they were supposed to meet up but didn't? Just playing devils advocate here
Unless, the murderer catfished them, posing as a male friend or interest. Something definitely made them uneasy to a point they found him "creepy".
The thing that baffles me, is if BG was planning on just killing them, why didn't he just push one of them over the bridge? Why stalk them the length of the bridge, then down the hill, through the creek and to their final locations where he brutally killed them. It would have been much easier for him to control 1 of the girls, than both I pray every day this guy is caught.
<modsnip>