A 38-year-old dentist was murdered Friday afternoon at her home in Uttar Pradesh's Agra by a man who gained entry to the house on the pretext of recharging the set top box. In what was a particularly brutal and savage crime, Dr Nisha Singhal was attacked with a knife and had her throat cut. Dr Singhal's children - the elder of whom is eight and the younger is four - were in another room of the house when their mother was killed.