NEW DELHI, Aug. 22 -- A 69-year-old woman who lived alone in a ground-floor flat of a four-storey building in southeast Delhi's Pant Nagar was murdered in the early hours of Friday during a suspected robbery, police said, raising fresh concerns over the vulnerability of elderly residents living alone in the city. Police officers who visited the spot said the woman, Preeti Kumar, had lived alone since her husband died in the 1980s. Her body was found by her daughter, who lives nearby, on Friday morning. Police said they have obtained CCTV footage showing a suspect entering the house around 3.15am and leaving before 4am. An officer, who asked not to be identified, said police were informed about the incident by Kumar's brother, who runs a well-known catering and tent-decoration business in the Capital, around 8.30am. Her body was found on the bed, with her hands tied and signs of a nosebleed. "She lived in a one-bedroom set. Her whole house had been ransacked. We called the crime and forensics team to inspect the scene and then took the body for a post-mortem examination," the officer said. The victim's family said Kumar lived alone and that one of her daughters, Vijaita Arora, who is in her late 40s and lives in Patel Nagar, visited her on Friday morning. Police said that they have registered a case on charges of murder and other relevant sections at the Nizamuddin Police Station and further probe is underway....