A mentally challenged youth living in chains was charred to death in a fire that broke out at his house in Paschim Kharera village of Burichang upazila on Tuesday night. The deceased was identified as Alauddin, 18, a Class XII student of Khasru Degree Government College and son of Abdul Matin of the village. Read: Three killed as truck hits rickshaw on Cumilla highway On Tuesday night, a fire broke out at the house. Alauddin was inside the house at that time and could not escape as he had been chained, said Alamgir Hossain, officer-in-charge of Burichang police station. "Hearing his screams, Alauddin’s mother tried to save her son but failed. The fire also gutted two more adjoining houses," he said.