As reported by The Sun, members of his aid convoy pleaded with his kidnappers, telling them he was a dedicated charity worker.

However, the brutal terrorists refused to release him and insisted he was a spy.

The masked terrorist with a London accent warned he would be next in the gruesome video which showed the killing of aid worker David Haines.

It is now thought that the ISIS militants were tipped off by corrupt officials before they kidnapped Mr Henning.

A source told The Sun: “The group were held up at the border with Turkey for two hours over supposed problems with their paperwork — which could suggest they were being deliberately delayed while IS were told of their presence in Syria.

So there is no evidence, just thoughts and 'which could suggest'

You suggest his friends had tipped them off. Looks like they did all they could to stop them taking him

It's not the first time he had been. I think this was his 3rd trip