Yes, I don't think they have really (publicly) nutted out Spedding's movements that day with any firm independent confirmation. Just several 'maybes' strung together.
This has certainly left questions in many people's minds. And the typical division of opinions.
The inquest really did not go far enough to prove (to the public) that he could or could not have been involved.
I am also not sure why Spedding had that piece of paper on the ready, to read out its contents as he left the inquest.
Perhaps his lawyer thought that it was the perfect venue for his own media campaign.