UFO expert and conspiracy theorist Max Spiers died under what some consider to be highly mysterious circumstances. Despite the supposed danger that conspiracy theorists often associate with their unique version of the truth, it’s extremely rare for someone like Spiers to meet a decisively untimely end.

So when such a tragic death does happen, it inevitably raises questions. In the case of Spiers, an allegation made by his fiance has some wondering if his work was the true cause of his death.

UK’s Telegraph reports that Max Spiers was found dead in June in an apartment in Warsaw, Poland. According to an investigation by Polish authorities, Spiers died “of natural causes.” Not surprisingly, this conclusion didn’t sit well with everyone, especially those who believed the UFO conspiracy theorist had ventured too close to the truth.

This is what Vanessa Bates, Max Spiers’ mother, came to believe. She said in an interview, “[Max] was making a name for himself in the world of conspiracy theorists. [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.”

Spiers’ mother feared her son ” had been digging in some dark places,” and as a result, “somebody wanted him dead.”

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