Dear Danny Boy,
1) Why in the world would she "fast jog" towards the TSBD after seeing the head of the President of the United States head get blown off?
You're missing the point, Thomas.
Royell was having a hard time believing that Gloria could have made the distance of 150 feet in 25 seconds.
I have demonstrated, using basic calculations, that Gloria could have covered the distance in 17 seconds at a modest pace of 6 mph, therefore, his concerns about Gloria making the distance in the time you proposed are unwarranted.
She could have easily made the distance in 25 seconds, so Royell's mind should be put at ease.
2) How long would it take her to run, flat-out, the 120 feet (40 yards) to the "island," where Shelley testified that she told him that JFK had been shot?
-- Tom
For argument's sake, let's say it's 120 feet to the concrete spur and 30 feet from there to the steps of the TSBD building.
Let's assume that, after having seen JFK's head explode, Gloria is in a full on, fight-or-flight, adrenaline-fueled sprint.
Let's say she's reached the perfectly achievable speed of 8mph.
It would take her a shade over 10 seconds to reach the spur.
It must be remembered that she had some kind of interaction with Shelley at the "little, old island" and most probably had an interaction with officer Joe Smith before she made her way to the front steps of the TSBD building. Let's say she reached the front steps about 20 seconds after the head shot.
This makes your identification of Shelley and Lovelady on Elm Street impossible.