The body of Bartlomiej Kuczynski, girls Jasmin, 12, and Downreuang, seven, and their aunt were found at a property in Costessey, near Norwich, on Friday morning.
Police found four bodies in a property in Costessey, Norfolk, on Friday 19 January - including those of two young girls - but a number of unanswered questions remain over the tragedy
Police did not attend a 999 call in which a man expressed concern for his mental state, more than an hour before he and three others were found dead in a house in Costessey near Norwich following a subsequent call from a dog walker.