I know nothing about the Barry George case.
It does seem to fit that Jeremy approached The Sun.
DB said he spent £6,000 in Amsterdam straight after the massacre. The big champagne funeral would have cost a bit. Together with trips to Burnham, Eastbourne, London and St Tropez.
The finalising of the will and selling off of items in WHF were weeks away. Although Jeremy had taken the WHF television.
Jeremy needed ready cash to keep him going. He had pictures and Brett had contacts.
Primary sources say it happened. Jeremy has remained silent.
The reason that I brought up the Barry George case was because of the clear collusion in that case between the Sun and the police in getting negative and untrue stories in the press to influence opinion against someone charged but not yet tried for the crime. He was convicted on a majority verdict before the conviction was overturned on retrial after the inevitable first failed appeal.
There are many examples similar to this throughout the years and the Sun's involvement with the police in corruption and outright criminality is well documented and not disputed.
I think it unlikely that Jeremy did approach the Sun. Given the proven track record of the Sun smearing charged person's using duplicity and lies on behalf of the police, it would seem more sensible to accept that any allegation made by the Sun requires further corroboration before being entertained seriously. The Sun's proven track record of of using exactly this kind of tactic should cause even those who believe Bamber guilty to treat any claim by the Sun with caution.
It also stretches credulity that anyone would be stupid enough to attempt to sell pornographic pictures of their own sister after supposedly murdering her and the rest of the family. It would be a helpful story pre trial though and useful early propaganda to influence opinion ahead of the trial.
Relying on stories in the Sun is never going to be a strong argument.