Opinion/Speculation:
Stop and think for a moment about this -- "what if" there was no photo or audio to go on in this case? Would we be thinking that it's a lone male perp? Or might we be leaning toward there being more than one perp involved? I'd be thinking that it was more than one myself. After reviewing the presser from the other day (where they debuted the photo and audio) I couldn't help but see how they were emphasizing it was not necessarily one person acting alone. With that in mind, I think it's entirely possible that BG had an accomplice who was waiting in another area (perhaps where the girls were later found) to help commit the final crime(s). Or, there could have been an accomplice who approached on the bridge from the rear (out of view from the cell phone camera), etc. trapping the girls with BG. My main reason for wanting to say this is that by reading the comments, we are fixated on everything being pulled off by BG alone (because that's the only perp photo we know of), but thinking outside the box might help answer the "how could this one guy who doesn't appear to be in top shape take control, etc. ?" It also adds another dimension of "who" to be looking for or trying to recall having seen in the vicinity around the time of the crimes. Obviously if more info comes out (DNA having multiple sources for example), it might help advance or extinguish this possibility. But for now, I truly think it's worth remembering.
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