I, like the Miller family, despite the numerous errors made in the handling of various parts of the investigation, is but satisfied with the verdict and outcome. I am aware that this is an unpopular view, but the following I hope will explain why I have concluded what I have.
With the rape of Hannah being the sole motivation of the crime, what people on the island has the least to lose as a consequence of her attack & annihilation, for apparently short term sexual gratification?
Locals have too much to lose in commiting crimes against foreigners. With the entire economy of Koh Tao reliant on tourism, (especially the influential mafia families), which you'd think make much of the income from the bars that they own, (or have connections with on the island). Seems very un-plausible.
Alternatively, why would any tourists pick out Hannah Witheridge from the beach when lively bars are full of intoxicated and many other attractive women who are out for attention or a fling?.
The evidence which trumps all else in my opinion is the DNA that was present in the sets of semen that was left inside Hannah after the violent rapes. She was definately raped, (I've seen the uncensored pictures of her exposed genitals.)
After first liasing with the FBI, the Thai's were then likely advised to send the collected samples off to Singapore for more advanced genetic testing:- which they duly did. As a developed first world nation in every respect, it is hard to dispute their work, even if you find the Thai's suspect.
These Burmese men admitted to hanging out on Soiree beach that night, drinking, and by their own accord. CCTV evidence shows three men just before midnight riding a moped, presumably heading down the direction toward Soiree beach.
I have always suspected Hannah was heavily intoxicated by the early hours, after having been in and out of bars since at least 7pm that night, she was either found by D Miller at the AC bar and was walked back, or she became lost from her friends, and wandered alone the short distance back to the bungalows.
At some point the path crossed that of these Burmese men, where I believe a cigarette was requested or briefly shared. The rest hinges on whether she was alone, with strangers, or with Miller, but were then set upon soon after:- off guard and unexpectedly.
Motivated by strong sexual interests in Hannah, passion and possibly jealousy. The attack came fast, violently, and in an opportunistic fashion:- very little effort was made to try and cover up the evidence left behind or to steal any of the possessions they were carrying.
*David Millers phone probably ended up in the sand AT the crime scene, as he was dragged into the surf, where it was probably picked up rather than found at a different nearby location. That phone somehow ended up in the residence of the accused where it was later smashed up:- presumably, to avoid it being found by someone or by the Thai authorities.
That these two men say they only admitted to the crime before in order to stop police torture is absolute nonsense.
They must have known that if they had admitted to the murders they would face prison and a almost certain death sentence. The only obvious route to freedom would be to keep denying and pressing the miscarriage of justice' case.
These two Burmese men are trying to spin their way out of it by changing strategy from straight forward denial to one of persecution; the changing of pleas only shows that. If you're not guilty of a crime, there is no way you would ever say you were. You wouldn't.
If the Thai's had brutalised and continued to torture these men just to extract a confession, there would be mounting evidence of inflicted injuries, and it would lead to the two being unfit to stand trial or be seen in the public eye:- And that would almost certainly result in the Thai's getting found out.
Its highly unlikely that the Thai King will grant clemancy to these two men. That would be an admission of an enormous miscarriage of justice and would likely destroy Thailand's credibility internationally. If these men really didn't do this crime, (I'm pretty sure that they did), then their only hope now is that the real killers come forward to take the fall, otherwise they are going to be executed.