Slurred through an interview on his friend's YouTube channel days before

A British conspiracy theorist who died in mysterious circumstances in Poland said he felt like his face was 'on fire' and his throat was being throttled in a haunting final interview just four days earlier.

UFO expert Max Spiers, 39, was said to have vomited dark blood and died on a friend's sofa in Warsaw where he was due to give a talk on conspiracies.

He texted his mother Vanessa Bates, 63, in the days leading up to his death: 'If anything happens to me, investigate'. She suspects he was murdered.

But in his last interview, he told PorozmawiajmyTV's Alexander Berdowicz that he was 'seriously ill' as he mumbled, fell asleep and frequently forgot what he was saying.

Conspiracy theorist Max Spiers, 39, complained that his face felt 'on fire' in the final, haunting interview before his death. Pictured: Spiers jumping on the trampoline to cool off after falling asleep 30 minutes in

Spiers (pictured), who was widely respected in the dark world of UFO sightings and government conspiracies, slurred throughout the interview just four days before he was found dead in Warsaw, Poland. Pictured: Spiers in a previous interview

'I feel like this here - it feels like something's going like this to my throat... My throat is being completely [taken over],' said Mr Spiers, originally from Canterbury in Kent.

'It's like a numbing agent, like when you have tooth trouble and you put stuff on your teeth. It feels like that. My face feels on fire.'

When he dozed off after 30 minutes, the host suggested he jump on a trampoline in his back garden.

Later Mr Berdowicz asked him what was happening to his throat, Mr Spiers replied: 'I feel like it's being throttled.'

A message at the end of the hour-long interview read: 'Late Saturday afternoon 16 July 2016, while having a nap on the couch, Max stopped breathing' - adding efforts to resuscitate him were unsuccessful.

In a second uncovered interview a week earlier, Mr Spiers ranted about the rise of the 'fourth Reich' and claimed he could move objects with the power of his mind.

'My throat is being completely [taken over]... My face feels on fire,' he told the interviewer, shortly before he nodded off and need a break to recover. Pictured: Spiers lying on the trampoline during his final interview

Spiers' body was discovered on his friend's couch in Warsaw, where he was due to give a talk, with some claiming he threw up a black liquid in his final moments. Pictured: Spiers with his ex-girlfriend Sarah Adams

He went on to claim that a trained practitioner can steal someone's soul 'through the eyes' and jump into their body, to 'live forever'.

Spiers also claimed a person can turn into 'any object' through 'DNA coding'.

He continued: 'I've had objects fall down, things crack, glasses crack... When my energy is spiked, if I'm agitated. The more agitated I get, things start falling.'

Mr Spiers, who reportedly went to school with Orlando Bloom, went on to claim Zionists, a nationalist movement of Jewish people, and the Nazis are now working together.

He said: 'In all words, there's truth hidden in all words. So if you look at the word Zion. If you change a vowel around and switch the letters around, you have Nazi.

'This is a war that stems back 50,000 years. I believe they have the same agenda - they both want to bring about a new world order.'

Mr Spiers is believed to have travelled to Poland in April where he is believed to have stayed with friend Monika Duval.

In another interview on July 2, Spiers claimed he could move objects with his mind in his final recorded interview. Pictured: Spiers talking to the host of PorozmawiajmyTV

Spiers also told of how, through a method known as 'DNA coding', a person can turn into 'any object' and how he can move things with his mind

Spiers is believed to have travelled to Poland in April to speak at the Earth Conference, which advertised talks on mind control, artificial intelligence and transhumanizm. Pictured: Spiers aged around 20

He died in July before he was due to speak at the Earth Conference, which advertised talks on 'mind control', 'artificial intelligence' and 'transhumanizm'.

North East Kent coroner said its investigation into his death, believed to be from 'natural causes' - is at an early stage.

But his mother Vanessa, an English teacher, believes his dark investigations into UFOs and government cover-ups may have made him enemies who wanted him dead.

She 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.

'I think Max had been digging in some dark places and I fear that somebody wanted him dead.'

'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.'

Spiers' mother Vanessa Bates, 63, believes her son was killed but his final interview with PorozmawiajmyTV could shed light on a pre-existing illness

Max was buried in Canterbury cemetery after his mother arranged to have his body flown home a week after his death.

A post-mortem examination was carried out by a pathologist in east Kent, but Vanessa says that more than two months later she still does not know the result, or whether there will be an inquest.

She added: 'Apparently, he had not suffered any obvious physical injuries but he could have been slowly poisoned, which is why the results of toxicology tests from his post-mortem are so important.

'He has a brother, Josh, and sister, Becky, who are both devastated, as are his two boys. We all want answers to this and I will continue to fight to get to the truth.'