Accused Aussie killer's wrathful encounter with a woman after a motorbike accident weeks before he allegedly strangled Thai teen: 'King Kong' See more Daily Mail on Google - save us as a Preferred Source By WILLIAM TON, DUNCAN MURRAY AND DARIO PIGNATELLI FOR AUSTRALIAN ASSOCIATED PRESS PUBLISHED: 03:19 BST, 2 July 2026 | UPDATED: 04:32 BST, 2 July 2026 e-mail Three weeks before an Australian man allegedly murdered a 17-year-old Thai teenager, another woman faced his wrath following a motorbike accident. Simon Peter Carman was arrested at Bangkok's main international airport on Friday while allegedly attempting to leave the country on a Jetstar flight bound for Perth. The 45-year-old was detained after the body of teenager Tunchanok Donhomla was found in a suitcase dumped next to a railway in the popular tourist destination of Pattaya, south of Bangkok. Khanittha Thongsuknmag said she crossed paths with the alleged killer on June 5 when they were involved in a motorbike accident outside the apartment complex where they were both staying. Recounting their interactions following the accident, she described a man as 'King Kong' - a common local phrase for a large foreigner. 'He was angry, angry,' the 53-year-old said. Messages between the pair, seen by AAP, show Carman telling Thongsuknmag to 'buy me a wheelchair now ... or I will make sure big trouble'. When Ms Thongsuknmag tried to apologise and told him her insurance would cover the costs, he called her 'stupid and dopey', according to the WhatsApp exchange. + 6 View gallery Khanittha Thongsuknmag (pictured) said she crossed paths with alleged killer Simon Carman on June 5 when they were involved in a motorbike accident outside the apartment complex where they were both staying + 6 View gallery Carman is accused of the murder of 17-year-old Thai teenager Tunchanok Donhomla + 6 View gallery Ms Donhomla (pictured) was strangled in an apartment near Beach Road vice strip in Pattaya 'I have to see specialist in Pattaya. I need taxi!! You can pay, you evil B***H,' another message said. Ms Thongsuknmag said she paid Carman 2,000 baht ($A87) at the behest of police, but he continued to demand more money for a wheelchair. 'I blocked his number,' she said. Her boyfriend Andro said they were in disbelief when news broke of Carman being the suspect in Tunchanok's death. CCTV from the early hours of Thursday morning showed Carman and the teenager returning to his apartment hand-in-hand. It was there that she was strangled, police allege. Footage later captured him allegedly leaving the property alone while pulling a large suitcase. The complex is minutes from Pattaya's Jomtien beach, a popular tourist area known for its watersports and nightlife. + 6 View gallery Ms Thongsuknmag said she paid Carman 2,000 baht ($A87) at the behest of police, but he continued to demand more money for a wheelchair + 6 View gallery CCTV of the night allegedly showed Carman holding hands with Ms Donhomla + 6 View gallery Hours la