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Australian murder accused claims self-defence in Pattaya

Australian national Simon Peter Carman, 45, has denied murdering Thai teenager Tunchanok Donhomla in Pattaya, telling the ABC news, he acted in self-defence during a struggle in which he claims she pulled a knife.

Carman, who has been held at Pattaya Remand Prison since his arrest on June 27, said he had pleaded not guilty to all four charges against him, including murder, concealing a corpse and abducting a minor for indecent purposes.

"I have not done anything wrong. I shouldn't be here ... I do not understand what's going on," he told ABC Foreign Correspondent in his first media interview since his arrest.

Carman said he was "hoping and praying" to be released. If convicted of murder, he faces either the death penalty or life imprisonment.

Carman describes alleged struggle

Police allege Carman picked up 17-year-old Tunchanok, known to family and friends as Cake, on Pattaya's Beach Road in the early hours of June 25 before killing her and disposing of her body.

CCTV showed the pair entering the lifts at Carman's condominium building holding hands. Later footage showed Carman dragging a large suitcase from the building and carrying it on a motorcycle at night.

Two days later, police found Tunchanok's body in the suitcase near railway tracks close to Carman's accommodation. He was arrested at Bangkok's international airport while attempting to board a flight to Perth.

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Carman said he met Tunchanok while she was with two friends, and that she followed him home. He said he did not know why she did so, and claimed he believed she was aged between about 25 and 35.

He told the ABC he gave her 500 baht "for nothing", after which she demanded more money and allegedly pulled a knife. Carman said he repeatedly told her to put it down during a physical struggle.

"All I was trying to do was restrain her from stabbing me," he said, adding that she eventually "went limp". He said he did not call an ambulance or anyone else because he did not trust police.

Police file to go to prosecutors

Pattaya Police Colonel Anek Srathongyoo said investigators would submit their file to Pattaya prosecutors this week. Prosecutors will then have until September 18 to indict Carman.

Police say an autopsy concluded Tunchanok died from suffocation. Colonel Anek said she had suffered a brain injury and had no other injuries, while Carman's DNA was matched to DNA found on her body.

Tunchanok's father, Thongchai Donhomla, said he wanted the harshest punishment, either life imprisonment or death, saying he was deeply heartbroken and wanted justice for his daughter.

Carman told the ABC he did not yet have a lawyer and had received no visitors other than Australian embassy officials.

The exclusive 30 minute interview was conducted under a prison guard's watch. The ABC said it was the first foreign media organisation in at least 15 years allowed to interview a foreign inmate in a Thai prison. Officials reviewed footage for security reasons and prison conditions could not be discussed.

Video and picture courtesy of ABC News


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24 August 2026

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JerryM Gold Member

JerryM

Advanced Member
40 minutes ago, fredwiggy said:

He could be a serial killer that's actions are fairly recent, or this could be his first.

There is not any rational suggestion by any law enforcement in Thailand or Australia that this guy was involved in any heretofore unsolved murder and I emphasize RATIONAL.

JerryM Gold Member

JerryM

Advanced Member

With the "serial murderer next door" they have unsolved murders but no potential suspect to link to them.

Here they are starting with a potential suspect and trying to link him to any unsolved murder.

Not the same thing.

Tigger01 Senior Member

Tigger01

Member
1 hour ago, Liverpool Lou said:

Even though at this stage he's innocent?

No he's not innocent but hasn't yet been found guilty I'm court. Let's be honest he's guilty as sin!

jvs Diamond Member

jvs

Advanced Member
5 minutes ago, J Branche said:

Well since he killed her unless there is video or recorded evidence somewhere we may never know. A little hard for a dead person to dispute the accusations against them.

Was there a knife? I think a good defense against a box cutter would be a pillow or a chair.

The guy could have run away from her.

If there was a box cutter it shows that is typically for self defense,it can be deadly but when swung around is usually to keep people away from you.

Did he have a scratch on him?

Dexxter Silver Member

Dexxter

Advanced Member

I don't believe him for a minute. If it was really self-defence all he would have to do is grab her arm and take the knife away. A big bloke like that against a tiny girl would have no problems disarming her. There was absolutely no reason to choke her to death. Even if he was choking her she would have dropped the knife when unconscious and he could have stopped before killing her. I think he murdered her because he knew she was underage and was worried police would be called.

HK MacPhooey Advanced Member

HK MacPhooey

Member
2 hours ago, FlorC said:

What if his story is somewhat true ?

Even more reason to give him a life sentence or preferably death penalty on the grounds of being a 'Cheap Charlie' if nothing else

wavodavo Gold Member

wavodavo

Advanced Member
1 hour ago, ballpoint said:

Saying he thought she was between 25 and 35 is the type of excuse made when accused of bringing an under age girl back to one's place, not when accused of murdering her. If she just followed him home, and he gave her 500 Baht for "nothing" then her age wouldn't matter, and bringing it up would suggest (along with the hand holding) that he did indeed ask her back, thereby placing even more doubt on the truth of his story.

1 hour ago, fredwiggy said:

Almost every serial killers are caught, some faster than others, and seeing this is a country where CCTV is as common as rice, getting caught is easier than other places. Disposing of a body from a hotel isn't an easy thing no matter what, especially with those cameras, and him trying to leave the country is what most would do, especially that he's a foreigner that will stand out here. He could be a serial killer that's actions are fairly recent, or this could be his first.

This bloke's storey has got more holes in it than the colander that my wife uses uses to strain the pasta .

Rams86 Gold Member

Rams86

Advanced Member
3 hours ago, Thingamabob said:

500 baht for 5-6 nights ?

I paid her 500 baht every morning, so the extra 500 was for her to f**k off. Don't forget this was around 2002 so 500 baht for doing nothing was more than adequate.

Captain Flack Star Member

Captain Flack

Global Moderator

Post breaking forum rules removed @HK MacPhooey rule 9. You will not post disruptive or inflammatory messages. You will respect other members and post in a civil manner. Personal attacks, insults or hate speech posted on the forum or sent by private message are not allowed.

241195_1469957797 Senior Member

241195_1469957797

Member

Yeah, they're good at telling stories, all those innocent victims who were imprisoned😆🤪😆

khunPer Diamond Member

khunPer

Advanced Member
8 hours ago, Georgealbert said:

"All I was trying to do was restrain her from stabbing me," he said, adding that she eventually "went limp". He said he did not call an ambulance or anyone else because he did not trust police.

POV: This is a bit weird point, as if you are attacked and completely innocent — still, he must have let the girl inside with him in the building and the appartement — you would call for help and not hide a dead body in a trunk by a railway track.

SOTIRIOS Platinum Member

SOTIRIOS

Advanced Member

....I Read..."Died From Suffocation"... (?)

...Was She...Or Wasn't She Stabbed...(?)

JerryM Gold Member

JerryM

Advanced Member

Thai law on murder is very specific on intent.

What we would call first degree murder in US requires planning and premeditation and is the most severe.

A secondary murder charge is involved when inflicting injury upon the body of such person without intent to cause death and is less severe.

sqwakvfr Platinum Member

sqwakvfr

Advanced Member

Simple question: Where is the knife with Tuanchanoks' fingerprints on them From the surveillance tapes the two were holding hands. Is that how a girl follows a man now? If he has a lawyer the better route might be to negotiate a plea and ask for mercy with a reduced sentence with the hope of returning to AUS someday.

Dave1954 Explorer Member

Dave1954

Member

If she attacked him with a knife where is the knife?

JerryM Gold Member

JerryM

Advanced Member
(edited)
2 minutes ago, sqwakvfr said:

If he has a lawyer the better route might be ...

In the ABC Australia interview it is noted Mr. Carman does not yet have a lawyer because, if he had a lawyer, the first thing the lawyer would say to him is: SHUTUP!!

Edited by JerryM

Upnotover Ruby Member

Upnotover

Advanced Member
1 hour ago, jvs said:

Was there a knife? I think a good defense against a box cutter would be a pillow or a chair.

The guy could have run away from her.

If there was a box cutter it shows that is typically for self defense,it can be deadly but when swung around is usually to keep people away from you.

Did he have a scratch on him?

He did, on his arms apparently, which he blamed on spiders. He lies a lot, not very convincingly.

riverhigh Silver Member

riverhigh

Advanced Member
2 hours ago, Liverpool Lou said:

Did the prostitute freak do anything wrong? Has it been confirmed that she was completely innocent, no threats, no extortion, no attempted stabbing?

If what you say is correct he should have stayed in his room and waited for the police. Instead Carmen destroyed the alleged evidence, put her body in a suitcase, dumped the body, and then did a runner to the airport. No evidence of a knife or stabbing involved at the crime scene, just an autopsy report of a 17 year-old, 45kg soaking wet, being suffocated. No other injuries on her body to indicate a knife fight.

Artisi Star Member

Artisi

Advanced Member
1 hour ago, J Branche said:

Well since he killed her unless there is video or recorded evidence somewhere we may never know. A little hard for a dead person to dispute the accusations against them.

Plus it doesn't really matter she's dead, was stuffed ins suitcase, dumped near a railway track with the person seen wheeling the suitcase out of the hotel caught trying to leave the country, who when arrested spins a way-out story about self-defence.

But he innocent according to our resident pendant.

If Ripley's "Believe it or Not" was still published it would be the lead story.

Taboo2 Gold Member

Taboo2

Advanced Member

You coward. I hope he never see the light of day.

JerryM Gold Member

JerryM

Advanced Member
(edited)
2 minutes ago, L- Lifeline said:

Indeed- and his proposed defence is frankly ;laughable given the huge size difference

He doesn't have a proposed defense as he doesn't yet have a lawyer.

Self-defense is a judgment call as it is determined whether the response is to imminent and unlawful danger was proportional and reasonable.

Edited by JerryM

Cameroni Star Member

Cameroni

Advanced Member
(edited)
1 hour ago, riverhigh said:

No other injuries on her body to indicate a knife fight.

It is this which makes Carman's story unlikely. A knife fight should have left injuries on her or him.

It is common for murderers to claim it was self defence. Here, on the balance of probabilities one would have to conclude it was probably not.

There may have been a dispute about payment, he may have been attacked and he then lost his self control and killed her in anger. Either way that is not a proportional response and it is an unlawful killing.

Edited by Cameroni

cynic1 Silver Member

cynic1

Advanced Member
5 hours ago, FlorC said:

What if his story is somewhat true ?

You must be kidding me. Any person with an IQ above 120 knows he's guilty and as far as I am concerned forget life in prison as in 20 years time he will most likely be released. As per the parents death sentence and that's it. I'll pull the trigger no problems.

Just one example apart from the knife. He said,"he believed she was aged between about 25 and 35".

Anyone in this chat site, after seeing her face, think she is that age, even though she is and looks like 17 of slim build and at least half this guys height and most likely a third of his body weight.

This scum could not lie straight in bed.

PopGun Senior Member

PopGun

Member
7 hours ago, FlorC said:

What if his story is somewhat true ?

He had to use use lethal force to restrain a 40kg little girl.🤨🙂↔️

I wonder where his DNA sample was lifted from her body

OneManShow Silver Member

OneManShow

Advanced Member
(edited)
11 hours ago, FlorC said:

What if his story is somewhat true ?

His story can’t be true, he dumped her body and tried to run away, Does not look like a self defence to me, does it ?!!! Perhaps she tried to black mail him by her age to get some cash. If pays her parents and gets lucky perhaps gets 10-15 years.

Edited by OneManShow

Liverpool Lou Star Member

Liverpool Lou

Advanced Member
7 hours ago, Taboo2 said:

You coward. I hope he never see the light of day.

He's not reading this!

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