For the first time since his arrest, Australian murder suspect Simon Peter Carman has spoken publicly from a Thai prison — and his version of what happened to 17-year-old Tunchanok Donhomla is dramatically different from the allegations made by Thai police.

Carman, 45, maintains that he did not intentionally kill the teenager and insists he acted in self-defence during an alleged confrontation involving a knife. Speaking from Pattaya Remand Prison, he said he believes he should not be behind bars and continues to deny the charges against him.

But the case has already taken a disturbing turn.

😱 “I have not done anything wrong”

Carman told the ABC that he was innocent and claimed his actions were aimed at stopping Tunchanok from allegedly stabbing him.

His account is now at the centre of a case that has attracted intense attention in both Australia and Thailand.

However, his self-defence claim has not yet been tested in court.

Thai authorities have accused Carman of murdering the teenager and concealing her body. Police say their investigation has gathered evidence that will now be considered by prosecutors.

🚨 The discovery that shocked investigators

Tunchanok’s body was discovered inside a suitcase near railway tracks in the Pattaya area.

Police had previously traced CCTV footage showing Carman and Tunchanok entering an apartment building together. Later footage showed Carman leaving the building alone with a suitcase.

That evidence has become a major part of the investigation.

But Carman’s version of events remains fundamentally different from the police allegations.

He says the teenager attacked him with a knife and that he was trying to restrain her.

💔 Autopsy adds another disturbing detail

Thai police have also revealed that Tunchanok died from suffocation. An autopsy reportedly found a brain injury as well, although police said there were no other major injuries.

That finding is likely to become an important part of the evidence considered by prosecutors.

At the same time, authorities have reportedly linked Carman’s DNA to evidence connected with the victim, while CCTV footage and other forensic material remain part of the case file.

👀 So what really happened inside that apartment?

That is now the question hanging over the entire case.

Carman says he was defending himself.

Police allege something very different.

And with the matter still progressing through the Thai legal system, the competing accounts have not yet been tested before a court.

The victim’s family has rejected Carman’s explanation, with her father saying he does not want to hear an apology from the accused.

⚖️ The next stage could reveal much more

Thai police have indicated that their investigation has been concluded and that the case is being passed to prosecutors.

That means the next major development could come when prosecutors decide how to proceed with the case.

Until then, one thing remains crucial:

Carman is accused, not convicted.

His claim of self-defence remains his account of what happened, while investigators maintain that the evidence supports their allegations.

And the question that many people will now be asking is not simply whether Carman’s story is believable…

but what the evidence will ultimately show when his version is tested in court.