Newspaper headlines: Russian exile killed and high-rise attack fear

Many papers dedicate several pages to the murder of the Russian exile, Nikolai Glushkov, at his home in south-west London.

The Sun says detectives are working on the theory that he was strangled and then it was made to appear like he had hanged himself.

The Independent suggests investigators believe Mr Glushkov was killed using a dog lead.

And the Daily Telegraph reports that he had feared he was on a Kremlin "hit list".

Meanwhile, the Moscow Times turns to the poisoning of Sergei Skripal and his daughter, Yulia, in Salisbury, reporting that a senior Russian official believes the chemical used could have been developed in the UK or the US.

Alexander Shulgin, Russia's representative to the Organization for the Prohibition of Chemical Weapons is said to have told state television that Russia had never had a research project using so-called Novichok nerve agents - but that countries in the West did.

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The Daily Mail carries an exclusive interview with the foster parents of the Iraqi asylum seeker convicted of planting a bomb on a London Underground train at Parsons Green.

Under the headline "A Betrayal Beyond Belief", Ron and Penny Jones speak of their anger that the Home Office failed to warn them about Ahmed Hassan's admission of Islamic State links during his immigration interview.

They explain that they did their best to provide a loving home - buying Halal meat and showing him the local mosque - and describe the teenager as "the loveliest boy we could have asked for".

The paper says Hassan "plotted to kill under the nose of the government's anti-extremism programme Prevent", adding that he was "never referred to MI5".

In its editorial, the Daily Express condemns Prevent as a "failing programme" which should not have been "derailed" so easily by a teenager. It should be either made to work, it says, or scrapped.

The lead story in the Guardian highlights fears that tower blocks fitted with combustible cladding of the type seen on Grenfell Tower could be targeted by arsonists or in terror-related attacks.

Public officials are said to be concerned about increasing delays to work to replace the dangerous cladding.

Councils are trying to keep the buildings' locations secret because of what one local authority called the "real and significant risk" of attacks, says the paper.

In another story, the Guardian unearths an unusual discovery in west London.

It says that what is now a "suburban high street in Ruislip" has been found to have been an ancient subtropical coastline dating back 56m years.

Engineers carrying out excavations for HS2 found a black clay containing vegetation suggesting that the area was wooded marshland close to the sea.

Finally, the debate about the definitive way to eat a cream tea appears to have been settled "by Royal command" - according to the Daily Express.

The Queen, "whose taste must be assumed to be beyond reproach", the paper says, is said by her former chef to prefer the Cornish way of serving a scone "jam first", with clotted cream on top.

And if you're wondering, Royal sources reveal the monarch pronounces it "skon" to rhyme with gone, rather than "skone" as in tone.