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As two men begin life sentences for murdering four children in a petrol bomb attack on their home in Walkden, Tim Scott takes a look back at how the whole tragic story unfolded.
Two men have been handed four life sentences each for murdering four children in a petrol bomb attack on their home.
Zak Bolland and David Worrall were both given four life sentences and told they would serve a minimum of 40 and 37 years respectively for the petrol bomb attack on a home in Walkden, Greater Manchester.
The blaze claimed the lives of siblings, Demi Pearson, 15, her brother, Brandon, aged eight, and sisters, Lacie, aged seven, and Lia, aged three.
Courtney Brierley, 20, who was found guilty of four counts of manslaughter was sentenced to 21 years in jail.
Bolland, 23, welled up in tears and his head dropped as he was told he will serve a minimum of 40 years before parole as he sat in the dock at Manchester Crown Court.
His co-accused Worrall, 26, stared straight ahead as he was told he must serve a minimum of 37 years.
Bolland's ex-girlfriend, Brierley had put her hands together under her chin before she was sentenced to 21 years' detention for manslaughter.
Passing sentence Mr Justice William Davis said: "It is not necessary to describe the course of the fire.
"It was swift and it was deadly.
"Four children died a terrible death. Their mother has been grievously injured."
The court heard Bolland and Worrall were fuelled by drink and drugs as they filled two glass bottles with £1.50 worth of petrol bought from a local garage, stuffing the tops with tissue paper as they prepared the attack at 5am on December 11.
After the kitchen window of Michelle Pearson's home was put through, two lit petrol bombs were thrown inside.
Bolland hurled his bottle which "exploded" near the stairs, blocking the only exit to the ground floor and trapping the victims upstairs.
Within seconds flames engulfed the three-bedroom mid-terrace home on Jackson Street, Walkden, Greater Manchester.
Mrs Pearson, 36, woke up and screamed: "Not the kids! Not my kids!" and dialled 999, but she was overcome with heat and smoke before completing the call.
Demi Pearson, 15, her brother, Brandon, eight and sister, Lacie, seven, sleeping in a front bedroom, all died in the blaze.
Their severely injured mother was rescued with her youngest daughter, Lia, three, who died in hospital two days later.
Mrs Pearson's son Kyle, 17, had been involved in a "petty" feud with Bolland over damage to the defendant's #200 car, prompting a series of tit-for-tat attacks.
Kyle managed to escape with a friend, Bobby Harris.
Bolland was found guilty of four counts of murder and three of attempted murder.
Worrall was convicted of four counts of murder and three of attempted grievous bodily harm with intent.
Brierley was accused of encouraging the attack and was found guilty of four counts of manslaughter, but cleared of three counts of attempted murder.
Members of the Pearson family sitting in the public gallery hissed "Yes" as the guilty verdicts were delivered, following around 16 hours of deliberation by the jury
Latest ITV News reports
Two people jailed for killing four children by firebombing their home are considering appeals.
Timeline: The death of four children was the culmination of a series of tit-for-tat attacks during a "petty" feud over three weeks.