The gangland murder of a young couple at their home remains unsolved after the case against four men collapsed due to flaws in the police investigation.
Jordan Jackson, 20, and Leyla Djemal-Northcott, 21, were shot dead at their flat in Menlo Gardens, Upper Norwood, south London, on March 7, 2006.
Two men in ski masks blasted Jordan with a pump-action shotgun as he answered the door and then killed Leyla as she lay in bed.
Jordan's brother Keiran was also shot and was lucky to survive, while Keiran's girlfriend managed to hide and escaped injury.
Detectives said they believed the Jackson brothers were targeted in a gangland execution and Leyla was simply in the wrong place at the wrong time.
On January 7, 2011, the Met's specialist diving team searched the Regents Canal in east London after receiving new intelligence but failed to find any weapon.
Detective Chief Inspector Neil Hutchison from the Met's Trident group, said: "I believe these murders were pre-meditated executions. The two suspects forced their way into the flat early in the morning before shooting the victims at close range. The victims had no chance to run or defend themselves."
On November 14, 2011, police charged Michael Ennis-Simpson, 25 [13/06/86] from Plummer Road, Brixton; Shaun Sutton, 36 [7/02/75], from Wynton Gardens, South Norwood; Leon Russell, 28 [1/12/82] of no fixed abode and his identical twin Lee Russell, 28 [1/12/82] from Lyham Road, Brixton, with two counts of murder and one of attempted murder.
They were due to go on trial at Woolwich Crown Court on November 13, 2012, but the case collapsed after Mr Justice Fulford ruled that identification evidence was 'fatally flawed.' After an unsuccessful appeal against the ruling at the High Court the four men were cleared of all charges.
The prosecution case was that Ennis-Simpson was a drug dealer who orchestrated the hit after being robbed of £5,000 in cash. Leon Russell and Sutton were said to have burst into the victims' home in Upper Norwood with pump-action shotguns to carry out the killings, while Lee Russell was alleged to have acted as a lookout.
Leon Russell was picked out on an identity parade as one of the two gunmen by Mr Jackson's brother Kieran, who admitted he only saw part of their faces because they were wearing masks. The police used pictures of both Leon and his twin Lee as part of the procedure as well as two different photographs of six other men to create six 'virtual twins'.
Mr Justice Fulford, in his ruling dismissing the evidence, said that the photos of the Russell brothers made it impossible to distinguish between them and as a result the procedure was unfair.
The judge said: "The PACE Code and the relevant jurisprudence do not provide sufficient assistance to the police as to how identification parades in these circumstances should be arranged. The officers concerned took substantial steps to address the problems confronting them, and their failure to cover all the complex difficulties that have been revealed is understandable. The measures they implemented were intelligent and imaginative, if ultimately deficient."
DCI Chris Le Pere, from the MPS Trident Gang Crime Command, said: "We respect the decision of the court. This was a tragic case involving three young people two of which were killed in their own home. The case will remain open and if any new information comes to light it will be thoroughly investigated with the aim of bringing to justice those responsible."
Jordan and Leyla had been together for five years and had moved in together in Christmas 2005.
Leyla’s mum, Christine Djemal, said: “Leyla has not had the opportunity to finish college, get married, have children. She is deeply missed by her family who still find it hard to come to terms with her sudden and violent death.”
Jordan’s mum said: “Jordan is sorely missed. Due to his untimely death he has missed the birth of his twin brother’s son, a nephew he will never see, who is now four years old. He never got to see his baby sister’s first day at school.
“He was a caring, considerate and loving son, brother and uncle and a joy to be around. He is missed dearly and his murder has destroyed our family.”