Good point! Maybe she never was in the library and a witness saw someone Raelynn with someone in the vicinity of the library. Maybe after going through CCTV footage in the area, the witness or witnesses recognized this guy from footage. I suppose I will go on Google Maps and see what else is in the immediate area.
I went back ran over the footage over and over, full screen and slower. I realized I can't see the guy's right hand - arm underneath the hoodie and not in the sleeve, hoodie sleeves too long for him? If this happened on Saturday, the sign on the door states the Saturday hours are 9AM to Noon, so that narrows down the time frame somewhat.