I think it’s often what police *don’t* say that gives the game away - if they’d identified the running/sweating man/men they’d have no reason not to say so.
Also, nine months after the murder police apparently removed a traffic light post which a witness claimed he’d seen running man grab as he lost his balance. But the business with JS occurred around a month after Jill was killed. If you believed JS was running man, why would you be looking for running man’s prints many, many months later?
The person behind them has never been found
www.manchestereveningnews.co.uk
I’d suggest it’s because they haven’t the faintest clue who this guy was.