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Doctor Dies After Brit Rider Crash on Phangan

Associate Professor Dr Theerasak Kaewamatwong, known as “Ajarn Mor Ton”, has died after suffering critical injuries in a road collision on Koh Phangan, Surat Thani province. The respected respiratory and critical care specialist was struck while walking along a roadside by a motorcycle ridden by British national Duncan Wilcock, 51, who police said tested positive for cocaine after being located.

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The incident left Dr Theerasak with severe injuries, including bleeding on the brain. Following the collision, he was urgently transferred by air to Bangkok for specialist treatment and underwent brain surgery at Ramathibodi Hospital due to his critical condition.

Police investigations led to Wilcock being charged with seven offences. These include reckless driving causing serious injury, driving after consuming alcohol or narcotics, driving without a licence or insurance and failing to stop after the collision. Officers at Koh Phangan Police Station also opposed bail after alleging that the suspect had attempted to flee Thailand.

On 7 June 2026, the Facebook page of Vimut Hospital Phaholyothin announced that Dr Theerasak had passed away. The hospital published a message expressing condolences and paying tribute to his dedication and service throughout his medical career.

The statement read: “We express our condolences and mourn the passing of Associate Professor Dr Theerasak Kaewamatwong. Throughout his service, he worked with determination and dedication. His contributions will remain remembered and stay in our memories forever. We extend our deepest sympathies and wish for his soul to rest in peace.”

Dr Theerasak was a specialist in respiratory diseases and critical care medicine at the Lung Health Centre. His death has prompted widespread expressions of sympathy from colleagues, patients and members of the medical community.

Khaosod reported that the case is to continue through the Thai legal system. Authorities have already submitted the suspect to the court for detention while criminal proceedings move forward. The death of Dr Theerasak may also have implications for additional charges being considered by prosecutors as investigations continue.

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Picture courtesy of Khaosod

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image.png Adapted by ASEAN Now Khaosod 7 June 2026

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Srikcir Ruby Member

Srikcir

Advanced Member
20 hours ago, richard_smith237 said:

there is no legal proof that he was under the influence at the time of the incident.

Maybe, maybe not:

"After last use, cocaine can remain detectable in your system for weeks. It will remain detectable to tests in your blood and salvia for up to 2 days (48 hours), urine for up to 4 days (96 hours), and hair follicles for up to 90 days."

Cocaine level of detection over hours of ingestion

"drug tests usually look for its inactive byproduct, benzoylecgonine (BE), which stays in the system much longer than the drug itself. Measurements typically rely on standard cutoff levels set at 150 ng/mL for screening and 100 ng/ml for confirmation."

Investigation needs to also look for witnesses prior to the crash who might have seen his use as well as clothing worn during the crash, evidence in motorcycle.

Another twist perhaps in prosecution for cocaine implicated in the crash: Thailand does not have trials by jury. It has "bench trials" decided exclusively by a single or panel of court judges.

"The judge (or judges) plays an active role in examining the evidence and questioning witnesses to find the truth, rather than acting solely as an impartial referee between opposing attorneys as seen in adversarial systems."

richard_smith237 Star Member

richard_smith237

Advanced Member
18 hours ago, Georgealbert said:

The suspect is facing 7 charges:

1. Reckless driving resulting in a collision that caused serious injury to another person.

2. Driving in a manner that causes harm to a person and then failing to stop the vehicle, provide assistance, or fleeing the scene.

3. Driving without a driver's license.

4. Using a vehicle that has not paid annual road tax.

5. The vehicle user had no vehicle insurance coverage for accident victims.

6. Using a Category 2 narcotic drug (cocaine) in violation of the law.

7. Driving under the influence of alcohol resulting in serious injury to another person.

If he wasn't apprehended until the following day - how do they know if was driving under the influence of alcohol ?

Not wishing for this guy to get away with anything - just trying to figure out how this charge might stick.

thailand49 Ruby Member

thailand49

Advanced Member
22 hours ago, Ralf001 said:

How do you know he was under the influence at the time of the incident ?

The story printed " he was tested positive for Cocaine "

Was noted for alcohol and narcotics, he had no driver license and took off.

Just going by the incident written not saying correct or not but doing so can get you a time out.🤣

Ralf001 Star Member

Ralf001

Advanced Member
1 minute ago, thailand49 said:

The story printed " he was tested positive for Cocaine "

Yeah the new article omits the fact he was arrested the following day..... that when he tested positive.

richard_smith237 Star Member

richard_smith237

Advanced Member
2 minutes ago, thailand49 said:
22 hours ago, Ralf001 said:

How do you know he was under the influence at the time of the incident ?

The story printed " he was tested positive for Cocaine "

Which is incomplete - he 'tested positive' for Cocaine when apprehended the following day (photos show the arrest / apprehension was made in day-light - whereas the crash occurred at 8:30pm.

[to answer my own question above]

The DUI (alcohol) charge) was levied following a police investigation, where CCTV footage showed the Brit purchasing two cans of alcohol from a supermarket at around 8.30pm, approximately 17 minutes before the crash. The shop was located about 1.4 kilometres from the scene -officers alleged he drank these two while walking back to his parked motorcycle before riding away (perfectly feasible - but difficult to unequivocally prove I think).

thailand49 Ruby Member

thailand49

Advanced Member
5 minutes ago, Ralf001 said:

Yeah the new article omits the fact he was arrested the following day..... that when he tested positive.

So does that change your comment?

Yes it does omit but I'm just going by what is written what I do know coke stays in in your system just like weed.

He did take off reality his justice is in Thailand in a western court it is a different story.

I glad not in his shoes!

thailand49 Ruby Member

thailand49

Advanced Member
2 minutes ago, richard_smith237 said:

Which is incomplete - he 'tested positive' for Cocaine when apprehended the following day (photos show the arrest / apprehension was made in day-light - whereas the crash occurred at 8:30pm.

[to answer my own question above]

The DUI (alcohol) charge) was levied following a police investigation, where CCTV footage showed the Brit purchasing two cans of alcohol from a supermarket at around 8.30pm, approximately 17 minutes before the crash. The shop was located about 1.4 kilometres from the scene -officers alleged he drank these two while walking back to his parked motorcycle before riding away (perfectly feasible - but difficult to unequivocally prove I think).

True all speculation in a western court a good lawyer can rip this case apart but it isn't but in Thailand, all the flaws doesn't matter. Evidence or not he is screwed😂

richard_smith237 Star Member

richard_smith237

Advanced Member
2 minutes ago, thailand49 said:

True all speculation in a western court a good lawyer can rip this case apart but it isn't but in Thailand, all the flaws doesn't matter. Evidence or not he is screwed😂

Agreed... there's enough 'against' him that he is truly screwed - but so he should be, he killed someone through careless reckless riding, unlicensed, uninsured - the DUI (alcohol and cocaine) are more speculative.

I'm still interested in the 'other' ongoing situation whereby an NACC official killed a delivery rider while DUI - but the Thai media, western media and social media are disappointingly quiet on this issue and the focus appears to be on this foreigner - which is not incorrect - the mere suggestion is both cases should be very public.

thailand49 Ruby Member

thailand49

Advanced Member
5 minutes ago, richard_smith237 said:

Agreed... there's enough 'against' him that he is truly screwed - but so he should be, he killed someone through careless reckless riding, unlicensed, uninsured - the DUI (alcohol and cocaine) are more speculative.

I'm still interested in the 'other' ongoing situation whereby an NACC official killed a delivery rider while DUI - but the Thai media, western media and social media are disappointingly quiet on this issue and the focus appears to be on this foreigner - which is not incorrect - the mere suggestion is both cases should be very public.

This falls under the art of war!

Putting attention on foreigners covers up the massive flaws in the behavior of their own.

roo860 Star Member

roo860

Advanced Member
5 hours ago, newbee2022 said:

Again and again🥺

Why all those riffraff Brits have to come to Thailand?

Have they been deported to Thailand?

Maybe a deposit of $ 50.000 when entering Thailand will be a perfect idea to keep them outside

Better they should go to Ireland, but there's plenty of riff-raff Irish there already.

Thingamabob Diamond Member

Thingamabob

Advanced Member

The two points which are clear regarding this incident is that that doctor is dead and the motor cyclist who drove into him fled the scene. Fleeing the scene, apart from being despicable, also has legal consequences.

newbee2022 Star Member

newbee2022

Advanced Member
1 hour ago, roo860 said:

Better they should go to Ireland, but there's plenty of riff-raff Irish there already.

No, we sent them over to you

richard_smith237 Star Member

richard_smith237

Advanced Member
1 hour ago, Thingamabob said:

The two points which are clear regarding this incident is that that doctor is dead and the motor cyclist who drove into him fled the scene. Fleeing the scene, apart from being despicable, also has legal consequences.

It's quite incredible how we're now hearing about the legal consequences of fleeing the scene of an accident. Yet for decades we've read reports of horrific road crashes where one of the parties "fled the scene", with little or no mention of a separate charge for doing so.

I had always understood there to be some provision whereby a person could subsequently report themselves to the authorities within a certain period, 24 hours I think, although I haven't been able to find the actual law that supports that understanding.

That doesn't diminish the atrocity of what occurred in this instance. What happened was appalling.

However, it does raise an eyebrow. Fleeing the scene of an accident has become so commonplace here that many of us are genuinely surprised when the person responsible actually remains at the scene. The fact that this aspect is now receiving such prominence inevitably leads some to question whether these cases have always been treated with the same level of scrutiny and consistency.

unblocktheplanet Diamond Member

unblocktheplanet

Advanced Member
21 hours ago, Off Piste said:

I've thought about this scenario over the years...if one made it to Cambodia or say Malaysia without a passport, which one would have surrendered in his case for example...or even with a passport but no entry stamp into that country and lets say you wanted to go back to the UK (regardless of potential later extradition or not).............are there any escape artists on this forum that can advise..................

Yeah, I knew such a guy, sold acid to a cop. One's embassy is required to give their citizens a one-way passport home. Then there's extradition but probably not from Kampuchea.

Off Piste Silver Member

Off Piste

Advanced Member
3 minutes ago, unblocktheplanet said:

Yeah, I knew such a guy, sold acid to a cop. One's embassy is required to give their citizens a one-way passport home. Then there's extradition but probably not from Kampuchea.

Did he make it home OK.....

unblocktheplanet Diamond Member

unblocktheplanet

Advanced Member
1 hour ago, Off Piste said:

Did he make it home OK.....

Still in Siem Reap. Never went back to the US. Nothing for him there.

norsurin Gold Member

norsurin

Advanced Member

The court rewoked his bail and sent him right to jail.

Priorexpat Silver Member

Priorexpat

Advanced Member

Terrible. Thailand loses a good doctor but keeps drunk, drugged up a-hole. Not fair.

RIP Doctor.

Taboo2 Gold Member

Taboo2

Advanced Member

Please send him a copy of the book: The Damaged Done. He will need it.

Taboo2 Gold Member

Taboo2

Advanced Member
20 hours ago, thailand49 said:

True all speculation in a western court a good lawyer can rip this case apart but it isn't but in Thailand, all the flaws doesn't matter. Evidence or not he is screwed😂

20 hours ago, thailand49 said:

True all speculation in a western court a good lawyer can rip this case apart but it isn't but in Thailand, all the flaws doesn't matter. Evidence or not he is screwed😂

So, why did he run like a coward and hide out? If he was innocent and not on drugs, stop and help the man you just ran over. I hope he gets the max prison sentence.

roo860 Star Member

roo860

Advanced Member
18 hours ago, newbee2022 said:

No, we sent them over to you

Exactly, Irish Pikeys everywhere, leaving illegal sites in a filthy state sh!tting everywhere, thieving, ripping folk off with dodgy tarmac jobs, and the old dine and dash, most pubs in the UK won't have them anywhere near their premises.🫵

VocalNeal Star Member

VocalNeal

Advanced Member
6 hours ago, SAFETY FIRST said:

Why do so many foreigners come here and never grow up?

Because growing old is inevitable but growing up is optional.

On 6/7/2026 at 11:35 PM, Harsh Jones said:

What actually happened ? Was the doc at a crosswalk ?

No at night wearing dark clothing he was walking along a dark road So in effect the Invisible Man. With his back to the traffic. All the stuff my mother told me not to do.

newnative Diamond Member

newnative

Advanced Member

Hope he's thrown back in jail now that the doctor has died--should never have been granted bail in the first place.

thailand49 Ruby Member

thailand49

Advanced Member
1 hour ago, Taboo2 said:

So, why did he run like a coward and hide out? If he was innocent and not on drugs, stop and help the man you just ran over. I hope he gets the max prison sentence.

So, my remarks was pertaining to the testing after he was arrested the next day not to running away which anywhere looks guilty but here where in general it seems so common. Some excuses I've heard was they left because heard nothing or saw anything LOL, I'M suspect to any investigation that is made seen a murder case where police walk all around the crime scene contaminating the evidence.

But in this case there is supposed to be CCTV

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