Sufi Osman died shortly after being chased and set upon in September last year – he received a fatal wound to the neck and just over an hour later was dead.
Samatar Hirad, 22 , of Cippenham Lane, Slough, was found guilty of murder at the Old Bailey on Thursday, 17 September.
Jose Morais, 25 , of no fixed address and
Mohammed Yussuf, 25 , of Bordars Walk, W7, were both convicted of manslaughter.
All three will be sentenced at the same court on Wednesday, 7 October.
Police were called at 4am on Monday, 23 September, 2019 to reports of an injured man in the street.
A man, later identified as 22-year-old Sufi, was found with stab injuries outside a juice bar on The Broadway, Southall, near the junction with Saxon Road.
He had been chased, stabbed and left for dead on Abbotts Road before managing to stumble along the road and call for help.
Officers and LAS were quickly at the scene outside the juice bar which Sufi had made his way back to, but as he was blue-lighted to hospital, he died. He was pronounced dead at 5.25am.
On 24 September, a post mortem examination was carried out by Home Office pathologist Dr Ashley Fegan Earl and cause of death was given as shock and haemorrhage and a stab to the left hand side of the neck.
Officers recovered a kitchen knife, the blade of which was serrated and 21.5 cm in length, from an alleyway between Dane Road and Marigold Road, a short distance from where Sufi was stabbed.
A complete DNA profile which matched Sufi’s was obtained from the blade, and was identified as the murder weapon.
Prior to the attack, Sufi had been chased by four people. Samatar Hirad of Cippenham Lane, Slough, who is now aged 22 but was 21 at the time of the attack, pleaded guilty to possessing an offensive weapon.
Jose Morais , of no fixed address, and Mohammed Yussuf of Bordars Walk, W7, are now both 25, but were 24 when the attack took place.
A fourth person was arrested however no charges were brought against them.
CCTV shows the four men in and around the attack location a number of hours before the murder.
Sufi was identified on local CCTV systems at 3.56am walking along The Broadway, coming from the direction of Dane Road. At the same time, Hirad was outside the juice bar, and appears to have noticed Sufi approaching. Hirad made his way into Saxon Road where the others were, before returning to The Broadway.
Hirad and Sufi came into contact with each other at the junction of Saxon Road and The Broadway. They had a conversation which quickly turned into a confrontation. Sufi can be seen to have swung a blow. They fought, and Hirad produced a knife and lunged towards Sufi.
At this point, Sufi ran and it was after a chase that he was overwhelmed and attacked.
It was not long after the murder that the killers were located and arrested.
Detective Chief Inspector Rob Pack said: “This was a senseless and tragic loss of a young man’s life. It highlights the continuing blight that those who are prepared to carry and use knives have on our communities. Today’s verdict demonstrates that there are very real consequences for such actions.”