The police have stated JC is our man. They have a lot more info than what is in the public domain.
Or do they?
It is very odd that literally all the supposed evidence that has emerged is so feeble. Everything we know about JC, without exception, is supposition, speculation, opinion, and hearsay, and much of it is at odds with things we actually know about him. In no particular order:
Claim: We have JD's personal confidence (whatever that is worth) that JC had access to a black BMW.
Fact: JC in fact had a half-share in a red Sierra. If he had access to a BMW by stealing one, so did thousands of people.
Claim: There was an actual Mr Kipper outside 37SR.
Fact: Nobody saw SJL outside 37SR.
Claim: In the police's opinion JC looks like Mr Kipper.
Fact: He was never put on an ID parade, and he looks like Keanu Reeves. And also Vic Reeves.
Claim: He was a recently-released sex offender.
Fact: He wasn't the only one.
Claim: There are independent sightings of someone who looks like him in 37SR.
Fact: There was one sighting. Nobody came forward to corroborate it until after a reconstruction was broadcast, and the new sightings contradict each other.
Claim: SJL was in a relationship with a man from Bristol, which must be JC.
Fact: Said relationship was in 1982, when JC was in prison; he was from Sutton Coldfield, not Bristol; and he was ten years younger than the man SJL described.
Claim: JC liked to hang about wine bars.
Fact: No evidence he ever in his life went to Fulham.
Claim: Abduction fits his MO.
Fact: In 1986 he didn't have an MO; he was just a rapist and smalltime crook.
Claim: He was seen looking in Sturgis' window.
Fact: "Sighting" dates from fourteen years later.
Claim: He turned up at a woman's house but was chased off by her husband.
Fact: "Sighting" dates from fourteen years later.
Claim: JC might have been in London that day.
Fact: He was in Sutton Coldfield and offered an alibi which was never checked. As it was never checked, the police decided he did not have an alibi.
Claim: The CPS think the police did a great job.
Fact: The CPS are not a Red Team shadowing and evaluating the police's work.
They decide what cases to prosecute and have to think there's a realistic prospect of conviction.
And so on.
Claiming someone is a suspect on such flimsy evidence ultimately makes the police look foolish and petulant, and undermines public belief in their competence. Authoritarian demands that they be believed simply because they're the police don't work in a post-Jean Charles de Menezes world. If there's more against JC, then given that they've accused him, that he's at death's door and will never be tried anyway because the CPS aren't buying it, they should show us what else there is. My guess is there's nothing.
When JC dies, logically the case could be closed, because there's no possibility of a prosecution. It will I think be kept open, so that it can't be FOIAd. If it were, the full extent of the evidence seen, which would be hugely embarrassing if it really all is of the quality above.