A 35-year-old woman and her three-year-old son were found hanging by the same, single rope at Shambhupur Pakkarmatha village in Bhairab upazila of Kishoreganj district on Monday.
The woman was identified as Jonaki Akter, wife of Farhad Mia, a Bangladeshi expatriate in Italy. Alif, 3, was their only child.
Quoting local people, Additional Superintendent of Kishoreganj Police, Al Amin, said Farhad and Jonaki got married six years ago, but the relationship had remained turbulent throughout.
Jonaki's parents were called to her in-laws', where she resided on Sunday night. They arrived on Monday morning, but found the house locked, and no one present. Getting no response from Jonaki, her parents and local people broke open the door to the house, and found Jonaki and her son hanging from the ceiling by a single rope.
Later, they were taken to the local hospital where the doctors declared them dead. Jonaki's parents alleged she and her son were killed, after which the in-laws including the mother in law who lived with them, must have escaped.
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Police suspect it was suicide but the other house inmates going into hiding raised suspicion.
Necessary action will be taken after getting a complaint, said ASP Al Amin. It is unclear whether Farhad Mia is in Italy at the moment, or in Bangladesh.