This is the first picture of a baby girl and her three-year-old brother who died after they were found stabbed inside their family's flat.
Their father, named locally as Nithin Kumar, is in a critical condition in a hospital following the suspected double murder.
The one-year-old girl, her older brother and Mr Kumar, 40, were all found with knife injuries at their home in Ilford, north London, at about 5.30pm on Sunday.
The first picture of the family - taken at a birthday party about six months ago - emerged as the children's father, also known as Nithi, clings to life in hospital.