DETECTIVES and prosecutors were expressing their quiet satisfaction after the conviction at the Old Bailey today of four young men for the killing of Dean Mayley in Greenford in February.

Jamal Jones was found guilty of murder, while Michael Mensah, Ryan Beresford and Miguel Leiba were convicted of manslaughter. They will be sentenced on October 2.

Baljit Ubhey, Chief Crown Prosecutor for London, said: “This was a cruel and callous attack on a vulnerable victim.

“The four defendants were driving around 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. 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 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 (18), Jones (17), Beresford (19) and Leiba (17) were also convicted of one count of attempted robbery.

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