Max Spiers, a 39-year-old father of two, was found dead on a sofa in Poland in July 2016, days after he texted his mother that his life was in danger.
“Your boy’s in trouble. If anything happens to me, investigate,” he had said in the text message.
Spiers, who was originally from Canterbury, lived in the United States for a few years before returning to the UK to stay with his mother.
He had gone to Poland to give a talk about conspiracy theories and UFOs.
According to his mother, Vanessa Bates, 63, his dark investigations into UFOs and government cover-ups may have made him enemies who wanted him dead.
“He was making a name for himself in the world of conspiracy theorists and had been invited to speak at a conference in Poland in July. He was staying with a woman who he had not known for long and she told me how she found him dead on the sofa. But I think Max had been digging in some dark places and I fear that somebody wanted him dead.
Max was a very fit man who was in good health and yet he apparently just died suddenly on a sofa.
All I have is a death certificate from the Polish authorities that it was from natural causes, but no post-mortem was done so how can they tell that? They are also refusing to release any paperwork about it to me because, absurdly, I don’t have his written permission,” Bates said.
Spiers was buried in a Canterbury cemetery after his mother arranged to have his body flown home a week after his death.
Spiers’ friends have claimed that the deceased “vomited a black liquid” before he died.
Miles Johnston said: “A person has died here and I don’t think it’s good enough (that) somebody who just took normal medication should end up vomiting, spewing black liquid, whatever it was. And then shortly after that, whatever length of time it was, died.”
Spiers, in an interview filmed just four days before his suspicious death, had been investigating a major “occult-based paedophile ring within the US military”.
In the interview, Spiers talked of his enquiries into the Presidio Child Development Center run by the US Army in San Francisco.
Allegations of suspected ritual abuse involving 60 children, including four children had that contracted an STD, surfaced from the centre in 1986.
In the interview, he said he had feelings about bad things that had gone on at Presido.
He also spoke of having details on a number of underground tunnels connecting “pre schools, kindergartens, and churches” in San Francisco, which were linked to the Presido scandal.
Spiers said he was being attacked psychologically by forces he was exposing. He also talked about a deep underground water base between Dover and Calais being a secret base for “reptilian creatures that have infiltrated the global elite”.