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.
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