A father strangled and dismembered at his flat before his daughter was also killed was a convicted sex offender, police have said.
Noel Brown, 69, and Marie Brown, 41, were found dead at his home in New Butt Lane, Deptford, at about 2.45am on Monday.
It is a ‘strong possibility’ Marie disturbed the attackers as they attempted to dismember her father’s body, Scotland Yard said.
Detective Superintendent Paul Monk said Mr Brown’s conviction in 1999 for a sex offence – for which he served four years in prison – was not ‘screaming out’ as a motive.
He said ‘nothing’ had happened in Mr Brown’s life in the 18 years since the conviction to suggest that was the reason for the murder.
‘The offence was a sex offence, he was convicted and served time and was released in 2004 but I’m not prepared to give any more details,’ Detective Monk said.
He was not aware of any suggestion Mr Brown had been suspected of any other offences since his release from prison.
Detectives are still trying to establish why the pair were killed.
On the day he was last seen alive, Mr Brown had visited his local Paddy Power betting shop – but detectives said they had found no evidence he was killed because of a gambling win.
A neighbour saw him at his home at around 8pm on Thursday, November 30 and said at around midday on Saturday December 2, his daughter went into his flat out of concern for his welfare – she was not seen alive again.
After forensic searches of the area and gathering hours of CCTV, police have appealed for the public’s help and urged two men who visited Mr Brown’s flat in the days before he was found dead to come forward.
Detective Superintendent Paul Monk said: ‘At this early stage we are keeping an open mind regarding the motive. However, it was clear to the responding officers that there were no signs of forced entry to the property.
‘One of our key lines of inquiry is to establish if the suspect or suspects were known to Noel and if Marie disturbed them.
‘This is a deeply distressing time for Noel and Marie’s family as they come to terms with their loss.
‘I am keen to hear from anyone who saw Noel in the days leading up to his death or saw anyone or anything unusual in or around New Butt Lane, SE8 during that time.’