Jharsuguda: The police have detained a man over allegations of double murder and interrogating him further. The detainee, Kuluthu Khadia allegedly murdered his mother Jhimi Khadia (80) and wife Saibani Khadia (58). The bodies were retrieved from their house in Mistripada village of Katarabaga panchayat under Rengali police limits. A case has been registered in this connection and an investigation is underway, the police said.