Detectives investigating the house fire in Harlow that killed a woman and all five of her children, are now treating the deaths as murder.
The blaze was started by burglars in the lounge, and the flames then spread throughout the house.
There is a £10,000 reward to help catch the killers.
Lauren Hall reports.
More top news
A cancer patient has taken legal action against an NHS trust after suffering permanent life-changing injuries following routine surgery.
A Southern Railway passenger had a job offer withdrawn by employers who realised she would be travelling to work on the troubled services.
Russell Davy is still haunted by the memory of Eddie Heath, the chief scout he says sexually assaulted him at Charlton.