Try here, with their search function:
https://qresear.ch/
He supported Castro in his overthrow of Batista until 1959 when he claimed he realized what Castro really was.
But all that stuff happened through the CIA,
with GHW involved,
and then the elder Cruz went to Texas,
where GHW had operated.
It all sounds fishy,
at least to me.
So if he were involved in any chicanery,
it was with the CIA.