he visited a medium in brighton according to him,
personally i think from the way his theories are panning out he could have had a session with a potato and got better insight
Most of the theories which awoke David Icke, were already available in print decades before he had his awakening.
Such as "None Dare Call it Conspiracy" by Gary Allen, & "Tragedy & Hope" by Carroll Quigley.
He's simply trying to be the top dog in this field, by stating that those at the apex who control world events, all have the same blood line etc.
As someone has already said, it sells a lot of books.