COPS have arrested an 18-year-old teen over the murders of Bibaa Henry and Nicole Smallman.
The sisters were found dead in Wembley on June 7, after celebrating at a party in the park the night before.
Bibaa, 46, and Nicole, 27 were stabbed to death in the early hours of Saturday, June 6 at Fryent Park, off Slough Lane. They had spent the evening celebrating Bibaa’s 46th birthday.
Police were called to the park on June 7 to a report of two women found unresponsive.
A huge search operation was launched by cops, with a knife used in the murders found.
Several items at the scene belonging to Bibaa and Nicole were cleared away by well-intended members of the public, police said.
Bibaa, who lived in Wembley, and Nicole, of Harrow, were part of a group of 10 people who gathered from 7.40pm on Friday for the birthday picnic in the 254-acre park.
The hilltop site by two Ash trees is a five-minute walk from houses on Valley Drive and has panoramic views of London and its surrounding countryside.
Bibaa sent out invitations to guests stressing it was an open-air socially distanced party, as millions have been responsibly doing during the coronavirus pandemic.
The group, which included Bibaa’s grown-up daughter, reportedly drank moderately and ate finger food.
Both women were stabbed multiple times, a post mortem carried out two days later revealed.
Last Thursday it was revealed two police officers were arrested following allegations "inappropriate" selfie pictures were taken at the scene.
Senior officers said they were "horrified and disgusted" by the allegations, and said that Nicole and Bibaa's grieving parents have been informed of the "deeply disturbing" development.
Detective Chief Inspector Simon Harding said: “This investigation into the awful death of two sisters is of course a priority for the MPS and my officers have been working around the clock to identify the person responsible.
“Given the significance of this development, we visited the family in person today to inform them of the arrest. Our thoughts remain with them at this very difficult time.
“A team of forensic officers have been a constant presence at the park over the last few weeks carrying out meticulous fingertip searches at what is a vast and complex crime scene.
Most read in News
"To date officers have recovered more than 1,000 exhibits – including property belonging to both Nicole and Bibaa, collected hours of CCTV and visited hundreds of homes and businesses. And those enquiries remain ongoing.
“I would continue to appeal to the public to come forward with any information they feel may be relevant to our investigation.”
Anyone with information regarding the incident is asked to call the incident room on 020 8721 4205, via 101 or tweet @MetCC quoting CAD 3160/7Jun.