And now...The mother and father have been arrested on suspicion of murder.
Mick Philpott, 55, and his wife Mairead, 31, were arrested in Derby on Tuesday and are due to be questioned.
Jade Philpott, 10, and brothers John, nine, Jack, eight, Jessie, six and Jayden, five, died in the house fire on Victory Road on 11 May.
Another brother, Duwayne, 13, died three days later in hospital.
All six children were asleep upstairs when the fire began in the early hours.
Derbyshire Police said petrol was used to start the fire which was believed to have begun below the house's letterbox.
Five days after the attack Mr and Mrs Philpott held a brief press conference and thanked those who tried to rescue the children and members of the local community for their support.
Speaking after the arrests, Assistant Chief Constable Steve Cotterill said: "In view of the arrests, I would urge anyone who may have been holding back, not felt comfortable to voice their concerns or not had the confidence, to do so now.
"The latest arrests are just one step further in the investigation. It is absolutely vital that if you know anything you think could help us, come forward now, do not wait any longer.
"What we need to do now is carefully take our time, question the two individuals concerned and piece it together with everything else we know to date."
more of this sickening news here:
BBC News - Derby fire deaths: Mick and Mairead Philpott arrested
Mick Philpott, 55, and his wife Mairead, 31, were arrested in Derby on Tuesday and are due to be questioned.
Jade Philpott, 10, and brothers John, nine, Jack, eight, Jessie, six and Jayden, five, died in the house fire on Victory Road on 11 May.
Another brother, Duwayne, 13, died three days later in hospital.
All six children were asleep upstairs when the fire began in the early hours.
Derbyshire Police said petrol was used to start the fire which was believed to have begun below the house's letterbox.
Five days after the attack Mr and Mrs Philpott held a brief press conference and thanked those who tried to rescue the children and members of the local community for their support.
Speaking after the arrests, Assistant Chief Constable Steve Cotterill said: "In view of the arrests, I would urge anyone who may have been holding back, not felt comfortable to voice their concerns or not had the confidence, to do so now.
"The latest arrests are just one step further in the investigation. It is absolutely vital that if you know anything you think could help us, come forward now, do not wait any longer.
"What we need to do now is carefully take our time, question the two individuals concerned and piece it together with everything else we know to date."
more of this sickening news here:
BBC News - Derby fire deaths: Mick and Mairead Philpott arrested