@CrimeThrillerGirl, read the thread, there's a huge amount that points to JC, way, way beyond an isolated artist's impression.
You're right though in that one eye witness may have been wrong and also media bias after the story was covered on CrimeWatch and similar could have misled people but SL's own close friend saw her in her car in the right time frame in the area of Shorrolds/Fulham etc. She was certain it was her and that she had man with her (but of course that man may not have been JC).
Also there were multiple sightings on the day far from just the one. A left hand drive BMW was seen with a couple arguing inside it by a jogger in the vicinity on the day. JC had one/used one allegedly, again this witness could have been unreliable etc.
JC's girlfriend said 'she knew it was JC' when the story came to press - again not exactly solid evidence but someone answering JC's description in Fulham allegedly bought an expensive bottle of champagne that day and she said it was his modus operandi and things all seemed v familiar. Later a man answering JC's description was allegedly seen in the vicinity with a beribboned champagne bottle.
Daphne Sargent (girlfriend) said 'as soon as I heard about Suzy, I knew it was John. It had all the hallmarks right down to the champagne'.
JC also confessed to another girlfriend, ice skater Gilly Paige, she later retracted her statement though. Why I wonder?
SL spoke of this new romance/man/relationship with a man with links to Bristol, allegedly he'd taken her motor racing and she was scared by some of his behaviour . JC liked motor racing and had links to Bristol, again this could be coincidence.
The Sandra Banks murder had some of the same hallmarks. If you read about the other abductions etc you'll see what I mean, he liked young, professional women, he had a type.
He nearly got away with the Sandra Banks murder, he claimed he'd bought her car at an auction, many would assume he wasn't responsible if her body hadn't been found which then meant they could finger print her and check his flat.
JC was very attractive and charming, he even seduced his solicitor and had a relationship, despite being a convicted rapist.
It is conceivable JC and SL may have dated, her mother said she'd met someone new that answered his description. They were each others types, on the surface of it it seems. Also he didn't take being rejected well.
Kipper was allegedly the nickname JC had in prison - coincidence?
JC used to leave dates early - he had a curfew at time. He was living relatively close by and frequented the same bars and pubs SL did in Fulham. He was on day release the day she went missing. He denied all knowledge of the Fulham area to the police which was proven to be a lie. SL allegedly thought he was married due to the short dates.
I think she might have met with JC but used the appointment at the property to cover up the fact she thought she'd be taking a longer lunch break, or similar, that day, with 'Mr Kipper' to break things off but who knows?
Apparently the phone records for the Sturgis offices were lost, if these could be recovered seeing if there were any calls from JC's hostel to the Sturgis offices may have helped build a better picture.
I am with you, it's not quite compelling enough and it's easy to be biased, which is partly Videcette's point I think, but if you read up and watch the reports on it, CrimeWatch etc it is hard not to think JC wasn't responsible IMO.