A conspiracy theorist texted his mother to say 'If anything happens to me, investigate' just days before his mysterious death.
Father-of-two Max Spiers, 39, was found dead on a sofa in Poland, where he had gone to give a talk about conspiracy theories and UFOs.
He was ruled to have died from natural causes despite no post-mortem examination being carried out on his body.
Friends have claimed he died in a Warsaw apartment after he 'vomited a black liquid'.
His dark investigations into UFOs and government cover-ups may have made him enemies who wanted him dead, claims his mother Vanessa Bates, 63.
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