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Max Spiers, 39, who is originally from Canterbury, travelled to Poland in July to give a talk on UFOs and government cover-ups but was found dead on a sofa in the flat he was staying in. The father-of-two reportedly sent his mother, Vanessa Bates, 63, a text message two days before he died, which said: "Your boy's in trouble. If anything happens to me, investigate." Friends claim he died in his Warsaw apartment after vomiting "black liquid".

SWNS•KMTV VIDEO NEWS Conspiracy theorist Max Spiers was committed to investigating UFOs and alleged government cover-ups

After waiting for the results of a post-mortem only to find that Polish authorities failed to perform one, Vanessa now believes her son was killed by Government agents. She said: "Max was a very fit man who was in good health and yet he apparently just died suddenly on a sofa. "He was making a name for himself in the world of conspiracy theorists. "But I think Max had been digging in some dark places and I fear that somebody wanted him dead."

GETTY The conspiracy theorist was due to give a talk in Poland

I think Max had been digging in some dark places and I fear that somebody wanted him dead Max's mother, Vanessa Bates

She added: "[Polish authorities] are also refusing to release any paperwork about it to me because, absurdly, I don't have his written permission. "All I have is a death certificate from the Polish authorities that it was from natural causes." Vanessa arranged for Max's body to be flown back to Britain where an autopsy was carried out, but two months later she is still waiting for the results. She said: "Apparently, he had not suffered any obvious physical injuries. He could have been slowly poisoned – which is why the results of toxicology tests from his post-mortem are so important." Max was originally from Canterbury and a former classmate of actor Orlando Bloom.

SWNS Max was found dead on a sofa in a flat in Warsaw

He had been working alongside science fiction writer Madlen Namro and Monika Duval, who he is thought to have been staying with in Poland. Vanessa said: "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." Max worked with the supernatural and conspiracy theory group Bases Project and was due to appear at a conference held Wiltshire in August. Miles Johnson, part of the project and Max's friend, 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."

SWNS Max's friends are concerned he was killed for getting 'too close to the truth'

Top 10 Conspiracy Theories Wed, March 8, 2017 From mind control, to the missing Malaysian airways flight MH370 Play slideshow AFP/Getty Images 1 of 10 In 2011, Osama Bin Laden was killed by US Navy Seals and buried at sea, but now conspiracy theorists claim that it was all a lie and he is still alive