Judging by grill in central gutter in paving, bike stands etc, the figure is initially (when out of sight) outside Celebrities Nails, 6 Brentgovel Street. Possibly about parallel with the recessed doorway to the right in pic.
Then when continuing walking, while turning to look behind at the running man, is now just about outside Boot Opticians, 5 Brentgovel Street.
There’s the possibility he may have hung around in Boots Opticians doorway.
With recessed frontage, and large doorway, opportunity for him to disappear from sight.
Or if he continued to walk out of the walkway while the CCTV was zoomed in on running man, obviously this wouldn’t be captured.
If the camera turned back in the opposite direction towards Hughes Electrical (same as the angle showing the three people pictured) as he took a right, he wouldn’t be seen, or for that matter if he took a left.
Though after this, where he would have been expected to be captured on CCTV no idea, or whether this figure has been seen on subsequent CCTV and was clearly visible enough to be discounted.
I’m going on this clip being at 3:40am based on the timeline posted.
If accurate, that would suggest having had five minutes to do his business at the bins, (Number 1, 2 or otherwise) he’s retracing his steps.
If it is him, and it is at 3:40, then this would actually be his last appearance on CCTV, and he’s not heading away from the Horseshoe by the assumed route.
Welcome, brilliant first posts!