Four guilty of killing Dean Mayley in Greenford mugging

CCTV footage captured the killers approaching Dean Mayley before he was stabbed

Related Stories

Four teenagers have been convicted at the Old Bailey of killing a man with a mental age of nine who was stabbed during a mugging in west London.

Dean Mayley, 24, was stabbed in the heart while walking alone in Ruislip Road in Greenford in February.

Jamal Jones, 17, from Acton, who wielded the knife, has been convicted of murder.

Michael Mensah, 18, Ryan Beresford, 19, and Miguel Leiba, also 17, were convicted of manslaughter.

Mensah, of Greenford, and Beresford, of Acton, along with Leiba, from Hanwell, were also found guilty of the attempted robbery of Mr Mayley.

Jones, who was found guilty of murder, had earlier pleaded guilty to a charge of attempted robbery.

All four will be sentenced on 2 October.

Hunted victims

Lifting an order banning the naming of the 17-year-olds, judge Martyn Zeidman QC said: "Yet another example of a kind and innocent person losing their life because of somebody else using a knife.

"I just wish there was some way - obviously there isn't - in which I could turn the clock back."

After the verdicts the victim's mother Donna Mayley said: "It's never going to bring Dean back.

"Dean was a lovely lovely boy. Everyone that knew him loved him.

"I can't believe it happened - and for nothing. He was my youngest son and it's affected the whole family. It's unbearable."

During the trial prosecutor Simon Denison QC said: "These four were a team of knife-point robbers driving up and down the Ruislip Road looking for a victim or victims."

A CCTV camera captured the fatal attack in which three shadowy hooded figures are seen approaching and confronting the victim before one of them lashes out with a knife.

Clockwise: Jamal Jones, Michael Mensah, Miguel Leiba and Ryan Beresford Jones, Mensah, Leiba and Beresford were a team of knife-point robbers looking for a victim, jurors heard

Mr Mayley, who had learning difficulties due to a brain condition called Microcephaly, collapsed in the road and later died in hospital.

Following the verdict, Baljit Ubhey, London's Chief Crown Prosecutor, said: "This was a cruel and callous attack on a vulnerable victim.

"Dean was a vulnerable young man and it is likely that he did not understand what was happening to him in this terrifying situation."

Meat cleaver

Mensah was also found guilty of an earlier robbery which took place in the same area on 28 January.

At that instance he was involved in the mugging of a 15-year-old boy who was forced to hand over his North Face bodywarmer and mobile phone in the same area, the court heard.

Dean Mayley Dean Mayley had a condition which meant he had a mental age of about nine

While they were awaiting trial Mensah wrote a letter to Jones to persuade him not to implicate him in the murder, and further asked him not to say it was Mensah who had given him the murder weapon or told him to carry out the attempted robbery.

A search of Jones's bedroom uncovered a kitchen knife stashed under his mattress and a meat cleaver on top of his wardrobe.

line
Letter from Michael Mensah to Jamal Jones

In the letter Michael Mensah wrote to Jamal Jones in May while he was being held at HMP Feltham, Mensah ordered him not to say he had given Jones the murder weapon and advised Jones on his defence.

Mensah wrote: "Why do they think I gave you the nank (knife) and persuaded you? They can't say that without proof.

"I don't know why I came (to Greenford), I should have never come, it's only coz I was bored.

"Never in your life, say out loud I told you to rob anyone..."

Regarding Jones's defence, Mensah wrote: "Why are you saying self defence?

"If you want manslaughter you have to say you was off a drug. Say you take Molly (ecstasy)..."

Mensah went on to write that he cannot be convicted under joint enterprise as there was "never a enterprise to join" and he was not involved in the robbery, "so I'm not liable".

"You did the robbery but you wasn't in control, your mental state wasn't correct so doing it wasn't your fault so it's manslaughter."

Writing in capital letters, Mensah asked Jones to stop acting like a kid and "come correct big man ting".

line

Mensah also had previous convictions over the possession of knives, the court heard, with police discovering a five-inch jagged blade in his trainer and a samurai sword in the boot of his Fiat Punto in September last year.

This January he was stopped in his car again and a lock knife was found underneath the driver's seat.

More on This Story

Related Stories

The BBC is not responsible for the content of external Internet sites

BBC London

Weather

London

24 °C 15 °C

BBC Local Live

  1.  
    BBC London News 13:09: Sonja Jessup Presenter, BBC London News

    On the Programme at 13:30 on BBC One: We'll be live at City Hall finding out why Mayor Boris Johnson has announced a £10 charge to see the fireworks on New Year's Eve.

    And a new study's found that London has the highest rate of child obesity - compared to ten major cities around the world.

     
  2.  
    News on the hour 13:00:

    The lead headline at 13:00: There's been a sharp fall in unemployment. The jobless total dropped by 146,000 between May and July to just over two million. It also fell by 25,000 in London.

     
  3.  
    Uber gets green light in Germany 12:51:

    A German judge has overturned a nationwide ban on one of the services offered by the alternative taxi firm Uber, after a temporary injunction prevented the start-up from offering its UberPop ride-sharing service in the country.

    Uber app with black cab in background

    Cab drivers in London previously launched a day of protests over Uber's services, which they claimed broke Transport for London rules.

     
  4.  
    Council job loss predictions 12:42:

    Up to 500 Croydon Council employees could lose their jobs as the authority faces cutting its spending by £93m in three years, the Croydon Guardian reports.

    The scale of predicted job losses emerged in the same week the council revealed it is expected to shell out almost £8m more than budgeted for between 2014/15.

     
  5.  
    NYE fireworks to be ticketed 12:31:

    Leader of the Liberal Democrat London Assembly Group, Caroline Pidgeon, has criticised Boris Johnson for ticketing London's New Year's Eve fireworks display which will now cost £10.

    Fireworks explode over London on 1 January 2014

    She said: "London's New Year Eve fireworks showcases the capital to the world and...must be accessible to everyone and that must mean it remains free. It would be a scandal if any families were denied access to the event due to the introduction of ticket prices."

     
  6.  
    On air 12:20: BBC London 94.9 Radio

    On the Robert Elms show, Barbara Rochee talks about the Migration Museum's latest project Germans in Britain which explores the history of German migrants to Britain and sould band The Ephemerals play live.

    You can listen live on BBC London 94.9 and contact the team on 020 7224 2000.

     
  7.  
    Agent Fifi archive revealed 12:08:

    New wartime records released by the National Archives have revealed the existence of a glamorous female secret agent whose job was to see if other agents could keep their mouths shut.

    National Archives

    The files show that all too often Agent Fifi, as she was known, was able to get them to "spill the beans" and was employed to test out trainee agents in Britain before they were sent to occupied Europe in World War Two.

     
  8.  
    News on the hour 12:01:

    The lead headline at noon: A court has heard that PC Andrew Birks, the Met officer who is being investigated over the death of Sean Rigg in custody, wants to leave Scotland Yard and become a priest. Mr Rigg who died at Brixton police station in 2008.

     
  9.  
    'Epic shot' 11:55:

    Photographer Jason Hawkes tweets: A rather epic shot of @MPSinthesky yesterday over @cityoflondon #London.

    Aerial view of police helicopter
     
  10.  
    Video: Miss Saigon's 25th anniversary 11:44:

    Hit musical Miss Saigon, based on the opera Madame Butterfly, is celebrating its 25th anniversary year.

    Miss Saigon

    Lea Salonga and Eva Noblezada spoke to BBC Breakfast about their experience of playing Miss Saigon in the West End.

     
  11.  
    Mayor's Question Time 11:34:

    Mayor of London Boris Johnson is holding his monthly question session with assembly members which you can watch live here.

     
  12.  
    NYE fireworks to be ticketed 11:25: via Facebook

    News that London's New Year's Eve fireworks will cost £10 per ticket has got you all talking on the BBC London Facebook page.

    Matt Francis-burnett said: "I think this is a GOOD idea as it will limit the numbers to a respectable level and place less pressure on the transport and local area" but Jon Golding said "if its not about money why charge £10. Just do a free lucky dip of 100,000 names".

     
  13.  
    Boris not drawn on MP future 11:14: Tim Donovan Political Editor, BBC London

    Boris Johnson has refused to rule out standing for the Conservative leadership while still Mayor of London.

    At mayor's question time he was asked to clarify whether he would focus on the City Hall job until 2016, and during that time would not seek either a Cabinet job or the Conservative leadership, but Mr Johnson refused to speculate on "outrageous hypotheses", and said he was doing everything to help David Cameron saying "he's going to be PM in 2015 and beyond 2015".

     
  14.  
    News on the hour 11:04:

    The lead story at 11:00: The Chancellor George Osborne says today's unemployment figures mark another step towards full employment but there's still much more to do. In London the jobless total fell by 25,000 to just over 300,000 between May and July.

     
  15.  
    Airport expansion support 'increasing' 10:49:

    Support for airport expansion is increasing according to a survey by the travel organisation ABTA which found that as many as 41% of those polled agreed more airport capacity was needed - an increase of 5% on last year.

    The Davies Commission looking at expansion options is due to make its recommendation next Summer from three options: Building a third runway at Heathrow, constructing a second at Gatwick or lengthening the existing runway at Heathrow.

     
  16.  
    Feedback 10:39:

    We've introduced BBC Local Live to bring you the latest news, sport, travel and weather all in one place. Tell us what you think.

     
  17.  
    Super sewer issues 10:34:

    The government has been accused of approving London's controversial £4.2bn super-sewerwithout following "correct legal process", the Evening Standard reports.

    The Lee Tunnel which will connect to the Thames Tideway Tunnel

    Hammersmith and Fulham council leader Stephen Cowan claims a decision was taken months ago despite ministers officially needing to wait for a report which was published last week, and is threatening legal action. The government said it made the decision after "careful consideration".

     
  18.  
    Homecoming parade 10:20:

    Soldiers from the Coldstream Guards returning from Afghanistan will take part in a homecoming parade this morning.

    Coldstream Guards

    They will march from Wellington Barracks in Knightsbridge to the Guards Memorial at Horse Guards Parade.

     
  19.  
    Man stabbed on street 10:12:

    A 30-year-old man is in a critical condition in hospital after he was stabbed in Bounds Green in Haringey.

    Scotland Yard said it happened at the junction of Bounds Green Road and Brownlow Road shortly after midnight.

     
  20.  
    News on the hour 10:00:

    The lead headline at 10:00: Two problems on the Tube have caused disruption for thousands of commuters this morning. Over-running engineering work on the Central Line and the discovery of loose concrete above a Circle Line platform at King's Cross had led to severe delays and overcrowding.

     
  21.  
    Circle line resumes 09:57: Louise Pepper Journalist, BBC London

    The Circle Line has now resumed service, although there are severe delays.

     
  22.  
    NYE fireworks to be ticketed 09:46:

    People wanting to see this year's London New Year's Eve fireworks display will have to pay for the first time.

    London NYE fireworks

    London Mayor Boris Johnson has announced that 100,000 tickets will be made available for £10 each. Last year about 500,000 people went to watch the display although some complained they couldn't see or it took many hours to get home.

     
  23.  
    Tube update 09:36: Louise Pepper Journalist, BBC London
    • Euston, Kings Cross and Bank stations have re-opened
    • Waterloo and City line now running
    • Hammersmith & City line has resumed with severe delays
    • The Metropolitan Line has resumed with severe delays between Baker St and Aldgate
    • There is no service on the Circle line
     
  24.  
    Euston station 'closed' 09:26:

    TfL Travel Alerts tweet: Euston station is closed to the @victorialine and @northernline due to a faulty escalator

     
  25.  
    'Huge taxi queues' 09:12:

    BBC London's Tom Edwards tweets: Huge queues Kings X taxi rank

    Kings Cross taxi queues
     
  26.  
    Loose concrete at Kings Cross 09:03:

    BBC London's transport correspondent Tom Edwards tweets: Tfl saying loose concrete at Kings X spotted during routine inspection. Hopeful of re-opening sometime this morning ...

     
  27.  
    News on the hour 08:59:

    The lead headline at 09:00: A 30-year-old man's in a critical condition in hospital after he was stabbed in north London.

     
  28.  
    Tube update 08:47:

    Work to remove loose concrete in the roof at Kings Cross station as caused disruption on the London Underground this morning.

    • Circle Line: Delays
    • Hammersmith and City Line: Suspended between Baker Street and Barking
    • Metropolitan Line: Suspended between Baker Street and Aldgate
     
  29.  
    Top headlines
     
  30.  
    Scottish referendum 08:37: BBC London 94.9 Radio

    Vanessa Feltz will be talking about the Scottish referendum on the final day of campaigning with opinion polls still suggesting it will be a close vote.

    No Thanks and Yes signs in flat windows in Edinburgh

    What are your thoughts? You can listen live on BBC London 94.9 and contact the team on 020 7224 2000.

     
  31.  
    Central line delays 08:27:

    Central line tweets: Minor delays as a result of the service recovering from a late finish to engineering work.

     
  32.  
    Estate agent choc thief sacked 08:16:

    An estate agent was sacked after being caught on camera apparently stealing a bar of chocolate while showing a client around a flat.

    Secret footage of estate agent stealing chocolate

    The outgoing tenant of the flat in Walthamstow, east London, was testing the motion-activated camera, which he intended to use in his new home, and said the theft elt like "a complete betrayal".

     
  33.  
    Rail and road delays 08:11:

    The Greater Anglia train service is suspended between Liverpool St and Enfield Town/Cheshunt via Seven Sisters till 15:00 due to an operating incident.

    On the roads, police are directing traffic at Grosvenor Place in Victoria.

     
  34.  
    Grey start, sunny later 08:07:

    Today will have a grey start with low cloud and mist, but the cloud will gradually lift during the morning with long spells of sunshine expected throughout the afternoon. With only light easterly winds it will feel very warm with highs of 22C (72F).

     
  35.  
    Major Tube disruption 08:04: Louise Pepper Journalist, BBC London

    Work to remove loose concrete at King's Cross means there is no service at all on the Circle Line, while the Metropolitan Line is suspended between Baker Street and Aldgate, and the Hammersmith & City line is suspended between Baker Street and Barking.

    There are also severe delays on the Central Line.

    For the latest information go to our travel page or follow us on Twitter @BBCLondonTravel

     
  36.  
    08:00: Beth Rose BBC News Online

    Good morning. I'll be bringing you all the latest news, sport, travel and weather from London today for BBC Local Live.

    You can send your news, pictures and comments to london.locallive@bbc.co.uk.

     

Features

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.