The Salford house fire that killed three childre n was a “targete d attack ”, police said, following analysis of CCTV footage.
Demi Pearson, 14, was killed in the blaze on Jackson Street, Worsley. Her siblings Brandon, eight, and Lacie, seven, died later in hospital.
Their mother Michelle, 35, and a younger sister, aged just three, were still “fighting for their lives”, Greater Manchester Police (GMP) said.
A pair of 16-year-old boys including Ms Pearson’s son, Kyle, managed to free themselves before fire crews arrived and put out the flames in the early hours of Monday morning.
Kyle is thought to have tried to get back into the home to help his family, but was beaten back by flames and smoke.
Chief Superintendent Wayne Miller told reporters the family had been left “completely devastated”.
He added: “We now have a much deeper understanding of the devastating events which led to the tragic deaths of three children in Walkden in the early hours of yesterday morning, and have made significant progress in this investigation. We have collected CCTV from the area and now believe this to be a targeted attack on this house."
Detectives have arrested five people on suspicion of murder, he said, adding that two of them, aged 19 and 20 years have subsequently been released on bail.
A 24-year-old man who was arrested on suspicion of assisting an offender, has also been released on bail.
The Pearsons had been living under threat. Security measures were put in place at their mid-terrace home, including the fitting of a device to the property’s letterbox.
The arrangements, known as target hardening, are generally used to strengthen a building to protect it in the event of an attack.
GMP confirmed there had been “earlier incidents” at the address.
Additional reporting by PA
