https://www.theguardian.com/uk/2012/jun/27/brecqhou-barclay-brothers-getaway-island

In 1993 Sir David and Sir Frederick Barclay bought the 32-hectare (80-acre) island for almost £3.5m. The Mayfair estate agent ad had described it as impressive, highlighting features such as a stone manor house, a private harbour and a helipad. Ownership also came with "tax free status".

Barclays Bank family.

Re Q: >>2602749

I'm pretty sure he is referring to the wikileaks email regarding wetworks.

https://wikileaks.org/podesta-emails/emailid/6008

This is the same vineyard where Antonin Scalia was killed.

For fun: https://www.snopes.com/fact-check/wikileaks-exposes-clinton-assassination-of-antonin-scalia/

Snopes lists it as false so you know it's true.