I don't think you read my earlier post. He probally became friends with them and they trusted him. Easy to get close then.
It isn't necessary to be friendly with a bicyclist to get close to them in a 10 foot wide area.
Lots of childhood experience taught me that in a narrow path, even a 60 pound kid can pull a 100 pound kid off a moving bicycle by grabbing an arm, shirt or hair and giving a sharp pull sideways. The bicyclist comes off the bicycle every time.
The trail in Evansdale is only ten feet wide between the two fences. If a pedestrian were walking on the trail about 2 feet from one fence, that would leave an eight foot gap. A normal bicyclist would aim for the middle of that gap, not wanting to get too close to the fence or the pedestrian. That would leave 4 feet between the pedestrian and bicyclist. Actually less than 4 feet because the bicyclist takes up some width as well.
Four feet is within lunging distance for normal adults. From watching literally thousands of students struggling with their dogs, I've learned that the normal adult can lunge about six feet in less than a second (and the dogs know this!).
Lunge, grab an arm, grab a fistful of T-shirt or grab a fistful of hair and give a sharp pull sideways. The results would be one girl off her bicycle and firmly under the pedestrian's control.
If he pulled out a weapon such as a knife or box cutter, there's a good chance the other girl would stop as well.
As elmomom posted recently, her real life experience when she was 3 years older than Lyric was to stop riding her bicycle and freeze when a man showed her a knife. He didn't even have to grab her! And her reaction was completely normal.
If one of the girls had screamed, fought back or gotten away, the odds are that the pedestrian perpetrator would have fled the scene and it would have been regarded as another abduction attempt foiled or possibly an older kid playing an unfunny prank on two younger children (depends on the appearance of the perp).
People on bicycles feel relatively safe because their speed is so much greater than a pedestrian. It takes a champion runner to outrun a recreational bicyclist on a bicycle. But most bicyclists don't seem to realise how vulnerable they are to the laws of physics applied by someone with bad intentions (young kids who want to bug the heck out of you or adults with criminal intent).
I invite anyone with a bicycle and a lot of nerve to try this out, say on a sidewalk bordered with grass for a softer landing. Wear a helmet, maybe elbow and knee pads, just in case (kids bounce, adults break).
And dog owners, if you lunge at your dogs, stop it. Your dog knows darn well how far and fast you can reach, so if they want to get away, they will. You're likely to hurt yourself with that lunging and it does no good. Don't make me come and pin you with my eagle eye to get compliance! <LOL>