Danyal Hussein, 19, has been found guilty at the Old Bailey of murdering sisters Bibaa Henry, 46, and Nicole Smallman, 27, who he stabbed to death in a north London park last year.
Hussein, who was also convicted of possessing a knife, was convicted after around eight hours of deliberations.
He stood facing the jury and crossed his arms as the verdicts were delivered in front of the victims’ parents.
The teenager stabbed the sisters to death in a Wembley park because he believed he would win the lottery if he sacrificed women, the Old Bailey heard.
Miss Henry and Miss Smallman were killed at Fryent Country Park in north west London where they gathered with friends for a Covid-safe birthday celebration on June 6 last year.
The same friends found the sisters’ bodies in a hedgerow at the park.
Both women were “butchered by this defendant and would have their bodies concealed in undergrowth close to where they had been celebrating”, the jury heard.
A handwritten note was found in Hussein’s bedroom purporting to be an agreement between him and a demon, in which he promised to sacrifice women in order to win the lottery and not to be suspected of the crimes he had committed, the prosecution said.
The satanic drawings in Danyal Hussein's bedroom
The handwritten deal with the devil
It set out a “deal with the devil”, that the defendant would “sacrifice” a minimum of six women every six months “as long as I am physically capable”, the prosecution say.
In return, the Crown said the devil would grant him a lottery win, wealth and power, and he would never be suspected of any crimes by police, including the killings.
The note was signed "Danyal" in the defendant’s blood, the court head.
The jury heard how Miss Henry, whose birthday the group were celebrating, was stabbed eight times before her sister Miss Smallman was stabbed 29 times.
Hussein, seen below in a court sketch from the Old Bailey, bought the kitchen knives from an Asda supermarket and went to the park with latex gloves, at least one of the knives, a mask and small shovels in a backpack.
Court artist sketch of Danyal Hussein (centre) appearing in the dock at the Old Bailey, London
Credit: Elizabeth Cook/PA
Addressing the jury in the Crown Prosecution Service’s opening statement, Oliver Glasgow QC said: “It would appear that the defendant had confidence that his plan would work since following the fatal attacks upon Bibaa Henry and Nicole Smallman, the defendant purchased several lottery tickets and there were three lottery tickets folded up inside his agreement with the devil.
“As it turned out, the demon did not come good on the bargain, since not only did the defendant not win the lottery but the police identified all the evidence that links him to these two murders.”
Hussein set up an online lottery account the day before the killings using a photograph of his passport, the court heard.
On June 7, the jury heard he spent £17.50 on ten Mega Millions bets and two Mega Millions syndicate bets – none of which came in.
Hussein was accused of “lying in wait” for potential victims because “the defendant wanted to kill women and he planned to carry out his senseless violence in the days leading up to these murders, which is why he wrote about what he wanted to do and why he purchased knives that would enable him to kill with ease”, the Crown said.
Hussein placing the knives into his backpack
The killer may have been attracted to the sisters because they were dancing around fairy lights they had brought to the park with them, the jury heard.
A picture recovered from the sisters' mobile phone of them dancing to fairy lights before they were killed
During the course of his attack, Hussein suffered a knife wound himself as his hand slipped due to being wet with blood.
This injury to his hand left his DNA on the knife which was recovered from the scene, the Crown say.
The jury also heard how he dragged the bodies into nearby undergrowth and that his blood was found on the victims and on leaves and trees.
The prosecution alleges CCTV shows the defendant arriving home in the early hours of June 6 without trousers, which the Crown claims he disposed of along with the mobile phones of his victims.
Mr Glasgow QC told the Old Bailey Hussein attempted to access Miss Henry’s phone more than 130 times between 1.26am and 3.48am, at which point it was dumped in a pond in the park along with Miss Smallman’s handset.
During the time he had the phone, the device’s data reveals that he walked 2km as he attempted to clean up the scene by putting bloodied blankets in bins, the court heard.
Later that day, friends became worried about the sisters, and went to the park in search for clues as to their whereabouts.
They initially found both their glasses and phoned the police.
A few moments later, the knife was found.
Whilst on the phone to 999, Adam Stone – who had been at the birthday celebration the night before – found his friends.
Mr Glasgow QC told the court: “The scene that greeted him was so shocking that, at first, all Adam Stone could do was scream.
“The bodies of Bibaa Henry and Nicole Smallman lay on their sides. They were top-to-toe and their limbs were intertwined – both of them had been repeatedly stabbed and they were clearly dead.
“He could see some of the stab wounds to Nicole Smallman’s body and her lifeless eyes were wide open.”
Meanwhile, Hussein had gone to Northwick Park hospital to seek treatment for cuts to his right hand, the court heard.
He told the doctors that he had been mugged at 10pm the night before and was referred to a plastic surgeon.
His wound was stitched and he told the surgeon that he had been mugged two or three days before and that he did not want to report the matter to the police, the Crown said.
Hussein, of Guy Barnett Grove, Blackheath, south-east London, has denied double murder and possessing a knife.
Families of both the defendant and the victims, including the sisters’ mother, were in court.
Mina Smallman, mother of the two victims looking on as Danyal Hussein appears in the dock at the Old Bailey
Credit: Elizabeth Cook/PA
He had denied any involvement in the crimes, and the CPS said it is likely “he will claim the reason his DNA and blood was found all over the crime scene, the murder weapon and the dead bodies is because he has been the victim of a conspiracy”.
He will be sentenced at a later date.