PURNEA, June 29 -- An elderly couple were found hanging inside their home in Bihar's Purnea on Sunday, police said, adding that they were probing both the angles -- suicide and murder. The daughter of the couple alleged that the elder son had committed the reprehensible crime. The couple were identified as 65- year-old Gooler Rishi and his wife, 60-year-old Muniya Devi. The incident took place at Hem Colony under Krtiyanandnagar police station which is about 15-km away from district headquarters. Couple's daughter Champa Devi said her brother Manoj Rishi and his wife Fulkumari Devi hanged her parents to grab the family land....