Essex police say they've received a number of calls after a TV appeal over the house fire that killed a family of six in Harlow.
Dr Sabah Usmani and her five children died after the blaze last month. It's now being treated as murder.
In a fresh appeal on the BBC's crimewatch programme last night, police asked for information about a laptop stolen from the house on the night of the fire. Detectives described the case as tragic and unprecedented for the force.
Detectives investigating a house fire which killed six members of the same family are treating the deaths as murder, police said tonight.
Essex Police have said a house in Harlow that killed six members of the same family is now being treated as a murder investigation.
Police are asking people with private CCTV cameras to check for clues on how a fire that killed six members of one family started