so what's going to happen? >> it was getting dark by the time they left the shopping center, walking the same route tricia would likely have taken. >> we were maybe halfway up the road when heather turned to me and said, did you happen to notice that brown van? i said, no. >> then the van passed again, slowly. >> we still weren't alarmed. he came by again. >> a third time. >> yep. really slow this time. looking at us. the hair on back of our necks started to stand up. >> the van pulled right up beside them. how close? show me. >> he was, i mean, his wheels were right on the side of the curve. and this was me. this was heather. and he leaned over, started to say something and at that point we were both like, run. just run. >> the girls called security, describing a two-tone van driven by a man with mutton chopped side burns.