On the eve of the anniversary of her father's death, the daughter of Nikolay Glushkov has issued a personal appeal to anyone with information about the murder to come forward to police.
Mr Glushkov was found dead at his home in Clarence Avenue, New Malden at around 22:45hrs on 12 March 2018 and a murder investigation was subsequently launched when the post-mortem examination gave the cause of death as compression to the neck.
Natalia Glushkova, the daughter of Mr Glushkov, said:
"My father was the most important person in my life and he was an amazing man. He was extremely caring, smart, funny and wise and he gave me so much support and love throughout my life, but especially so when I came to live in the UK, where we grew even closer.
"I will never forget the 12th March 2018 and I still live with the picture of my father when I found him that day. That image will haunt me for my whole life. It is something that I thought could only happen to other people or in the movies, but nothing could have prepared me for what I saw and don't think I will ever fully recover from it. Quite simply, it has left me devastated.
"Not knowing how or why he was killed or who did it makes this even harder. I know that there will be somebody somewhere who will have information that could help the police with their investigation. If you do, then I ask, please come forward and tell them.
"Nothing will be able to bring my father back, but getting some answers as to what happened, I hope, will in some way help me and my family start to move on and focus on what a great and wonderful man my father was, rather than what happened to him last year."
Commander Clarke Jarrett, head of the Met's Counter Terrorism Command, which is investigating the murder, said:
"Mr Glushkov was murdered a year ago and we have made, and continue to make, extensive enquiries to establish the motive and identify anyone who may have been involved.
"We remain absolutely committed and determined to identify and bring those responsible for his murder to justice and I would urge anyone who may have information to contact us. Alternatively, you can contact the Crimestoppers charity, which is completely anonymous."
Anyone with information regarding the murder can contact police in confidence on 0800 789 321. Alternatively, contact Crimestoppers anonymously on 0800 555 111.
Officers are also reissuing images and footage of a black Volkswagen van that was seen in and around Clarence Avenue on the evening of Sunday, 11 March 2018, the day before Mr Glushkov was found dead.
Despite making extensive enquiries, detectives have, to-date, not been able to identify or locate the van or driver. They believe the driver may have information that could help their enquiries and anyone with information about the van or driver should contact police.
Since the murder investigation was launched in March 2018, detectives have contacted over 1,800 witnesses and taken almost 400 statements. Officers have also viewed 2,200hrs of CCTV footage and 1,200 exhibits - including forensic samples, as well as physical items - have been collected as part of the investigation.
Police were called by the London Ambulance Service at 22:46hrs on Monday, 12 March last year, after Mr Glushkov was found dead at his home on Clarence Avenue.
A murder investigation was subsequently launched on Friday, 16 March following a post-mortem examination, which gave the cause of death as compression to the neck.
From the outset, the investigation was led by officers from the Met's Counter Terrorism Command and, as a precaution, because of some of the associations Mr Glushkov is believed to have had, the Command has retained primacy for the investigation.
Mr Glushkov, a retired financial director, was a Russian national who had lived at the address in Clarence Avenue for two years.
No arrests have been made and enquiries continue.