Myanmar investigators say the two migrant workers accused of murdering two British tourists in Thailand are innocent.<br/> <br />They say some Myanmar nationals they've spoken to on Koh Tao island could provide evidence but they're reluctant to testify.<br/> <br />(SOUNDBITE) (Burmese) INVESTIGATOR OF THE MYANMAR INVESTIGATIVE COMMITTEE, KYAW THAUNG, SAYING;<br/> <br />"If the witnesses say what they know, they will lose their job. They are afraid of the Thai police and the Thai bosses. That's the main difficulty for us."<br/> <br />The bodies of David Miller and Hannah Witheridge were found on a beach in September.<br/> <br />Zaw Lin and Win Phyo were arrested after police said their DNA matches samples found on the victims.<br/> <br />Both initially confessed to the killings but then said the admissions were made under duress.
