A schoolboy was found dead in his residence at New town under Kotwali police station in Jessore on Thursday.The deceased was Shahjahan Hossain, 9, son of Azibar Rahman and also a student of Smriti Primary School in the area.Abdullah –Al- Mamun, medical officer of Jessore General Hospital said the boy was brought dead in the hospital.Sub-inspector Aminur Rahman of Kotwali police station said police is investigating into the matter.