A teenager has been convicted of the murder of Dean Mayley, a vulnerable man with learning difficulties.

Jamal Jones, 17, was convicted today (August 28) at the Central Criminal Court for the murder of Mr Mayley on February 7 (2014). Michael Mensah, 18, Ryan Beresford, 19, and Miguel Leiba, 17, were convicted of manslaughter and will be sentenced on October 2.

Mr Mayley, who suffered from microcephaly which led to him having a mental age of nine although he was 24, was stabbed during an attack in Ruislip Road, Greenford .

Baljit Ubhey, CPS London Chief Crown Prosecutor, said: “This was a cruel and callous attack on a vulnerable victim. On February 7 the four defendants were driving around in order to find a victim to rob and were prepared to use violence to take what they wanted from their unfortunate target.

“Dean Mayley was on his own walking along Ruislip Road in Greenford, west London. He was confronted by Jones, who was armed with a knife, while Beresford and Leiba blocked his escape and Mensah waited in his car ready to provide a quick getaway.

“Dean was a vulnerable young man and it is likely that he did not understand what was happening to him in this terrifying situation. He did not hand anything over to the robbers and Jones’ response was to stab him once, in the heart.

“The prosecution’s case was that all four played a part in Dean’s death. They have now been brought to justice for their appalling actions. Our thoughts are with Dean’s family at this time.”

Mensah, Jones,  Beresford and Leiba were also convicted of attempted robbery relating to Dean Mayley.

Mensah was convicted of one further count of robbery relating to an incident on January 28 where a 15-year-old boy was robbed on the same road.

Reporting restrictions on naming under 18s were lifted by the judge in the interest of the public.