Ekkapan Kaewkla is the man arrested by Thai police after British tourist Stephen Ashton, 22, was shot dead at a New Year's Eve party on a beach at Koh Phangan
Police said they had several witnesses and enough evidence to prosecute the 26-year-old suspect.
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The families of five young men who died have questioned why more was not done to protect beachgoers after a death at the beach last month.
A car bomb attack in a Turkish town near the Syrian border has killed at least nine and left dozens injured
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