The Phra Khanong court approved a police recommendation against releasing the four men, on grounds the nature of their alleged crime was hideous and the prospect of a lengthy sentence for kidnap and murder could prompt them to flee.
Police said they had not finished interviewing the seven witnesses while awaiting results of forensic inspection of the crime.
After their arrest on Tuesday, police said architects Aphiraphat Sukha-arkhom and Phanuphong Siraphanphanich, and Paphawin Maiprathum and Natthaphol In-ngern, confessed to kidnapping Kasetsart University freshman Piyaphan Thitiak-sornsillapa and drowning him after his mother failed to pay Bt2 million in |ransom. The woman thought the demand was a prank.
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