Police suspect the role of an insider in the incident in Nivesh Nagar area as the assailants got easy access to the house of the deceased, Ramesh Chandra Goyal, who retired as Deputy Director from Agriculture Department, late last night.
After gaining entry, they smothered the elderly man to death with a pillow. They then tied the hands and legs of his ailing wife and escaped with gold ornaments, cash and other goods worth several lakhs, police said.