Shane did not dispute the burned pie story, he confirmed it on the stand. His evidence at trial about who was where came right on the back of having pictures of the body thrust unexpectedly under his nose, then the humiliating suggestion in open court with the press ready to pounce, that he had been masturbating at the time - he told thecourt that the police had refused to accept most of the information he gave, opting instead for bombarding him with other suggestions until he was so confused, he didn't know what were original recollections, and what had been affected by police manipulation.
The sort of misinformation presented by John as fact that we see here is playing right into the hands of the very people John claims maliciously pursued and convicted him, using exactly the same tactics they used in the Luke Mitchell case. John knows police routinely use these tactics - why does he pretend, when discussing this case, that he fully accepts the oifficial case at face value, as if none of it has been tainted by police manipulation?