Mr Glushkov was an associate of Boris Berezovsky, a Russian oligarch and Kremlin critic who died in London in 2013.
Ako Mohammed, who runs a barber shop near Glushkov's home, said the Russian had last come in more than a fortnight ago.
Police were called at 2246 GMT on Monday to a residential address in Clarence Avenue, New Malden, where a man in his 60s was found dead. A police spokesman added: "There is no evidence to suggest a link to the incident in Salisbury".
One of Glushkov's friends, newspaper editor Damian Kudryavtsev, confirmed the news on Facebook, and told HuffPost UK that nothing was known about the cause of death.
A Russian political exile who once warned that he was on the personal hitlist of Vladimir Putin has died in London. In 2004, he was sentenced to three years and three months behind bars but was released in the courtroom having served the term in custody.
His family feared he might have been murdered by enemies in Russian Federation, but British police and forensic experts concluded Berezovsky had committed suicide.
Glushkov, who has been an executive at state airlineAeroflot and also worked for Berezovsky's auto company LogoVAZ, followed and was granted asylum in 2010.
The news of the death comes as the United Kingdom has given Moscow an ultimatum to reveal what it knows regarding the poisoning of a former Russian spy, Sergei Skripal, and his daughter in Salisbury last week.
The UK government has given the Kremlin until midnight on Tuesday to provide a "credible response", while Russian Federation has denied any involvement and demanded access to the nerve agent in order to assist the investigation.
An investigation published a year ago by the BuzzFeed news website identified 14 deaths, including that of Mr Young, which it said had been linked to Russian Federation by U.S. spy agencies.
"The death is now being treated as unexplained", a spokesperson for the Metropolitan Police Service said on Tuesday, adding that an autopsy will be taking place in the next few days. Speaking by telephone from Moscow, he said Mr. Glushkov had a long history of blood disease and his health was further undermined by the three years he spent in.
Last year, Glushkov appeared on a list published by the Russian Embassy in London of Russians wanted for serious crimes whom the United Kingdom had refused to extradite.
In recent years, Glushkov lived in the United Kingdom as he had been granted political asylum there in 2010.
"Officers attended and next of kin have been informed".
"The death is now being treated as unexplained", he said. "[But] I don't believe it was suicide", Glushkov said.
Six Nations winners Ireland have moved past England into second spot ahead of their clash at Twickenham on Sunday. Ireland, who also prevented English Grand Slams in 2001 and 2011, are braced for a backlash.
The Collector added that the rescue of others struck in the area has become very hard due lack of adequate lighting facilities. Reports said the students, who were on a trekking expedition, were climbing down the hills from Munnar in Kerala to Theni .
The debut of Disney's 'A Wrinkle in Time' aligned pretty closely with the missed-potential of 2015's "Tomorrowland". Hollis also predicted that " A Wrinkle in Time " has the next four weekends during spring vacations from schools.
Tottenham Hotspur legend Graham Roberts expects Spurs' new stadium to be miles better than West Ham United's London Stadium home. The FA are considering charging West Ham following Saturday's supporter unrest , and are now awaiting the club's observations.
Former Hull and Watford boss Marco Silva has been installed as the favourite for the vacancy with bookmakers. Benitez's side beat Southampton 3-0 on Saturday to climb up to 13th place in the Premier League.
Mark Hughes has been named as the "leading candidate" for the vacant Southampton manager's position, not Marco Silva . Club chiefs will want to make an appointment quickly with an FA Cup quarter-final against Wigan on Sunday.
The National Rifle Association has supported tighter controls on bump stocks, but has not endorsed Trump's proposed ban. The devices will remain on the market until the regulation is approved by the Office of Management and Budget.
Real Madrid manager Zinedine Zidane has predicted that the €400m (£356) transfer barrier will be broken within the next decade. As for the 400 million, they paid 220 million [for Neymar] and when they bought me they paid 72.
The United manager attempted to retrieve the situation by throwing on Anthony Martial and Mata, but it was too little, too late. It is, however the end of the Champions League road for Manchester United .
They will release perhaps the face of the team and its best player, but that is the cost of trying to abruptly change the culture. Until the Dolphins actually release Suh, Seattle and other interested suitors won't be able to pounce just yet.
Just recently Huawei has launched another smartphone, Huawei Y9 that is a derivation of Huawei Mate 10 Lite and Honor 9 Lite . The newly launched Huawei Y9 (2018) will be available for purchase for Euro 200, which roughly translates to Rs 16,000 approx.
Printable bracket for women's NCAA Tournament 2018
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Spanish media: Neymar wants Barcelona return
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Cardinals To Sign Sam Bradford
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India's slowing inflation to give RBI room to pause
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Fans go insane over Taylor Swift's 'Delicate' video
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National School Walkout: What you need to know
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2 fertility clinics respond to egg, embryo storage failures
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Christopher Liddell may replace Gary Cohn at the White House
The president's plan to impose the tariffs led to the resignation of White House chief economic advisor Gary Cohn on 6 March 2018. He has tried to have it both ways and, true to form, made it hard to know where rhetoric ends and true beliefs begin.
England won ODI series against New Zealand
Hales reached his half-century in 67 balls before picking out Williamson at mid-wicket in the 24th over to give Santner a wicket. New Zealand were dealt a blow hours out from the winner-takes-all ODI when Ross Taylor was ruled out with a leg injury.
Australia PM says Trump to grant tariff exemption
The Commerce Department also may look into removing certain products from the brunt of the hefty tariffs, he said. Trade Representative Robert Lighthizer in Brussels on Saturday to discuss an exemption.
Trade wars do not have winners
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