Christian Brueckner protested his innocence in letters and drawings

Madeleine McCann suspect Christian Brueckner has been protesting his innocence in a series of letters to MailOnline ever since he was linked to her disappearance.

In the first five page letter, written from Oldenburg jail where he was sent after being convicted of rape in 2019 and given seven years, he mocked authorities for suggesting he was responsible.

German authorities sensationally named him in June 2020 as the man behind the 2007 'abduction and murder' of Madeleine, when she was just three but since then no charges have followed.

The neat letters give a fascinating insight into convicted rapist Brueckner's mind and clearly show his obsession with trying to persuade the authorities and public, via the media, that he is innocent of involvement in Madeleine's abduction.

Brueckner wrote: 'Welcome to the biggest adventure you can imagine. I'm the most-known bad person in the world and I did nothing – well almost nothing.'

He added:'I wasn't kidnapping anybody and of course I wasn't killing anybody. I'll go further, I'll tell you I wasn't attacking anybody after I was 18.

'I made some silly mistakes when I was younger but who hasn't?'

Then referring to the Madeleine case he said:'Perhaps I was a suspect after all they found out about me.

'Drug dealer, breaking into houses, living in cars and there was something with kids when I was 17.

'But they had (sic) not even one proof that I was involved with the McCann case. And they still don't have it.

'I know why. Because they have no hairs or anything from Maddie what (sic) means that nobody can put stuff anything like that into my stuff to find it.

'The idea behind that all was perhaps to make the BKA (German police) and German prosecutor famous as well, as (sic) known all over the world as the smartest organisation ever.'

He added:'They (German authorities) have manipulated the truth in such an unprofessional way that I am laughing.

'I still have not lost my sense of humour. Even in this critical situation. This is what keeps me alive.'

The pencil written letters sent to MailOnline are noticeable by Brueckner's distinctive neat and tiny writing – which one graphologist said showed he was 'distorted and deluded'.

Handwriting expert Tracey Russell added that they also showed his 'fantastical views were constant and unchanging'.

She said his letters indicated someone who wanted to 'command and control' and she added the 'long extended end stroke on the reclining letter S is symbolic of 'someone who suffers with feelings of guilt'.

She went on: 'In some cases, this symbol is seen where a violent death has taken place close to the writer, and they are trying to come to terms with it.

'Whatever the truth, there is a need to continually feed his ego, and his ultimate aim is to get some sort of recognition' before concluding that he was on a 'short fuse'.

Another letter in almost word perfect English, sent to MailOnline included a drawing of daisy with petals being picked off and the words guilty' and 'not guilty surrounding it.

In a clear campaign to clear his name Brueckner wrote ahead of his current trial:' You can never imagine how it is when the whole world believes you are a child murderer, and you are not.'

Then he brags:'I got told a long time ago that the prosecutor's office was closing the Maddie case because there is not even the smallest evidence. There will never be a trial.

'The prosecutors are not saying anything to the public because they must give the files to my lawyers – and they contain many (sic) material which confirms my innocence.

Brueckner - who describes the investigation as a 'Brothers Grimm fairytale' added:' The police and prosecutors are trying to create a monster to divert the people and let them think I am the right one.'

He went on: 'They (investigators) will never understand that the idea they had was brilliant – I said already that Hollywood couldn't do better – but they choosed (sic) the wrong leading actor – me.

'I'm almost sure that some other persons in my situation, under all the pressure, the insults and the threatenings (sic) would have capitulated a long time ago.

'They would have asked where they can sign the death judgement. But not me. I'm tough as old boots.'

Brueckner again complaining that he is being made a scapegoat in both the Madeleine investigation and his current trial added: 'The responsibilities are not strong enough to admit the mistakes they made in the Maddie case.

'So they try despairingly to accuse me of other weird stuff. It doesn't matter that I have a completely different look like the victims are saying.

'I really would like to know what they tell them to convince tehm that it was me nevertheless.'

Closing the letter Brueckner said:' I'm writing this without self-pity and my self-confience ad self-control was never at a higher level.

'What doesn't kill you makes you stronger. Chin up! Better days are coming.'