"Mytton" isn't the first to suggest that the running bag man could be Darnell, and it's certainly certainly possible that he is, and that he took his footage shortly after the Towner clip, but I doubt it can ever be proven without additional info.
After looking at some actual photos from the day and cross referencing this with the actual videos for some clues and this is when I had my Eureka moments.
The running man in the suit would have to be one of the cameramen from the day.
The "cameraman" was running towards where the girls were headed.
The 3 girls were pretty and sad and this creates powerful images.
The Darnell footage shows a shaky cam pan from left to right, which is the direction where the "cameraman" was headed.
If Darnell was stationary the background would be a much smoother pan, it looks like Darnell wasn't really prepared for capturing the girls and the Towner film of the "cameraman" running into position, shows why this would be the case.
I initially asked if the Towner footage was longer we could see the where the scarfed lady was stepping down but that's not necessary because we can clearly see the shadow on the rear of the top step indicating that at least one of the girls was already going down these steps.
In the photo from Dealey Plaza we see that there are two points which require a step down, at these steps or at the footpath but we can see from the relative size of the rear monument and Darnell would have to have a higher vantage point to be able to look down onto the floor inside the monument which simply shows that the girls must be coming down those corresponding top steps.
From Towner we can see that Darnell was in the correct position to capture the 3 women in the right place coming down the right steps.
So in Conclusion on top of the 3 girls being an extremely close match we can position exactly where Darnell was filming from.
It's a Slam Dunk and I would like to see some extraordinary evidence to debunk this Home Run.
Btw the alternate narrative that Darnell just happened to be at those steps in the same position and then captured another 3 people coming down the same stairs who all just happened to match the Towner people is that really a worthy possibility?
There is a time when some people should just admit defeat and move on, just sayin.
JohnM