Australian Man Charged with Murder of 17-Year-Old Girl Whose Body Was Found in a Suitcase in Pattaya

What Happened

On the morning of June 25, CCTV footage captured a 17-year-old Thai girl, Tunchanok Donhomla, entering a condominium lobby in Pattaya with an Australian man at around 3:30 a.m. That evening, footage from between 9:25 p.m. and 9:48 p.m. showed the same man dragging a large black suitcase out of the building, loading it onto a motorbike, and leaving. He returned without the suitcase between 9:57 p.m. and 10:06 p.m., according to Pattaya City Police and verified CCTV footage reviewed by The Guardian.

Donhomla's friends reported her missing on Friday, June 27. Thai investigators traced her movements, flagged the suspect to immigration authorities, and intercepted Simon Peter Carman, 46, at Suvarnabhumi Airport that evening as he was preparing to board a flight to Perth.

After questioning Carman, Pattaya police located a naked body inside a suitcase near railway tracks close to the city's Floating Market area. The body was identified as Donhomla. According to Al Jazeera, police said she had suffered severe assault, with heavy bruising to her face.

The Charges

Pattaya City Police have charged Carman with three offenses: murder, concealing a corpse in an attempt to hide the cause of death, and abduction of a minor over 15 but not yet 18 years of age for indecent purposes, according to The Guardian.

Under Thailand's criminal code, a murder conviction can carry the death penalty or a prison term of 15 to 20 years.

Carman remained in custody at Pattaya City court as of Sunday, June 28. A court date has not yet been set.

Carman's Account

Carman has denied the murder charge. In video footage obtained by ABC Australia and reviewed by The Guardian, he addressed Donhomla's family directly: "I feel bad for what happened to your daughter. It was out of my control. It shouldn't happen."

He also urged other girls to "be careful," without elaborating.

According to Arab Times, Carman told police he met Donhomla on Pattaya Beach at around 3 a.m. and invited her to his rented condominium. Thai news outlet Thairath reported that he later claimed he acted in self-defense after a dispute over payment for her time, and that a physical struggle followed.

Carman had visible scratch marks on his neck and upper arms. He told police and on video that the marks were spider bites, according to Al Jazeera. Police Colonel Anek Sarathongyu, head of Pattaya City Police Station, said the marks were consistent with a struggle, per Al Jazeera.

The Strongest Defense Argument

Carman's stated self-defense claim appears in Thai law as a potential mitigating factor if Donhomla was involved in a physical confrontation that escalated and Carman believed he was in danger. The claim faces serious evidentiary pressure: CCTV footage allegedly documents him transporting the body and returning alone, which police argue demonstrates deliberate concealment rather than a panicked response to a genuine threat. No independent investigation of the self-defense claim has been publicly presented, and no defense attorney statements have been reported as of June 29, 2026.

Her Father

Donhomla's father, Thongchai Donhomla, 46, told Reuters he was struggling to accept the loss. "My daughter had no mother, so whenever she wanted anything, she would find a way herself, and she always helped me too," he said.

Broader Context

Australia's Department of Foreign Affairs and Trade confirmed it is providing consular assistance to Carman but cited privacy obligations in declining to comment further, according to both Al Jazeera and Arab Times.

The arrest came weeks after Thailand reduced the length of visa-free stays for tourists, following a series of cases involving foreigners accused of drug offenses, trafficking, and running illegal businesses, according to Al Jazeera.

Postmortem results, which Arab Times reported were still pending at the time of Carman's arrest, may confirm the cause of death and either support or complicate the self-defense claim before his case reaches court.