The disappearance of a mother-of-three a decade ago is now being treated as murder.
Lisa Pour was 40 when she went missing in January 2013. She was last seen by a probation officer in Willesden Green in northwest London.
Detectives now believe she is dead and the Metropolitan Police’s specialist crime command is investigating.
Ms Pour was staying at a flat in Kilburn High Road known to be popular with drug takers when she went missing.
She also frequented the Camden and Brent areas.
Police said people with connections to the flat had repeated “rumours” over the years but the information had never yielded concrete evidence.
They said the fact she hadn’t made contact with her family – who she was “devoted” to – had led them to conclude she had been killed.
Her family offered a £10,000 reward in January for anyone providing significant information.
Her children, Lauren-Holly, 25, and Jack Saffery, 23, said at the time it would mean the world for them to see their mother again.
“She is a light that is missing in our lives and there’s not one day we don’t think about her,” they said.
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But in a new statement, her father, Reza Pour, said: “Lisa’s absence in our lives has been a daily struggle but we always held on to the hope that she might still come back to us.
“To think that her last moments may have been filled with fear and pain is something that we cannot get over. Someone out there knows what happened to our beloved Lisa.
“Please come forward and help us find justice for her and find her body so she can properly be laid to rest.”
Detective Chief Inspector Neil Rawlinson said while Ms Pour had a “somewhat chaotic” lifestyle, “she would not have broken contact with her loved ones”.
Police say Ms Pour was slim, 5ft 2in tall, and had dark hair.
Anyone with information is asked to contact the Metropolitan Police or call Crimestoppers anonymously.