Andrew Jaipaul, 21, was stabbed to death on a housing estate in Holloway, north London, on Sunday 26 June 2011.
He was attacked by a gang of between 12 and 20 young men as he made his way home near Andover House, Andover Road, at 10.23pm.
Andrew, an aspiring fashion designer who lived in Birnam Road, Holloway, suffered a total of 25 stab wounds to his head, chest, back and legs and was pronounced dead at the scene.
Detectives arrested a total of 20 men during the investigation. Eight suspects were charged with murder from October 2012 onwards: Tommy McInerney, 20 [1/11/91], of Pilgrims Way, Upper Holloway, Jojo Mafwa, 18 [13/5/94], of St Margaret's Avenue, Tottenham, Warren Brooks, 22 [25/9/89] and his brother Wesley Brooks, 17 [10/6/95], from Ritchie Street, Islington, Allan Kalema, 19 [23/09/93], of Stevenage, Hertfordshire, Tirrell Ball-Thomas, 18 [18/7/94], of Colthurst Crescent, Finsbury Park, Orvill Sterling, 18, from Green Street, Enfield, and a 15-year-old boy from Upper Holloway.
They went on trial at the Old Bailey on May 16, 2013. The prosecution case was that Andrew was attacked by members of the 'Busy Block' gang at the height of a feud with rival groups known as the 'Wray Kray' and 'Crouch Hall' gangs.
In the early hours of that day a senior member of the Busy Block, Michael Munza, was stabbed six times in the buttocks.
The gang, set on revenge and to 'show face', gathered in Archway before travelling south towards Finsbury Park and Upper Holloway at around 10pm.
Andrew was walking home when he was confronted by a large group of youths in masks and hooded tops.
Prosecutor Zoe Johnson QC said Andrew was simply 'in the wrong place at the wrong time'.
She added: 'He found himself the victim of escalating attacks between rival gangs in north London.
'Andrew Jaipaul was minding his own business when, out of nowhere, a large, armed gang came across him, decided to attack him, chased him down and brutally murdered him near a children's play area.'
Although no forensic evidence linked any of the defendants to the murder, detectives identified members of the group by matching CCTV footage and eye-witness testimony.
At the close of the prosecution case Sterling was cleared of all charges on the direction of the judge due to lack of evidence.
McInerney, Mafwa and the Brooks brothers all admitted travelling with a group of youths towards Holloway but denied taking part in any attack. Kalema claimed he was dealing drugs at the time.
On 26 June 2013 the jury convicted McInerney, Mafwa, Wesley Brooks, Ball-Thomas and the 15 year-old boy of murder, conspiracy to cause grievous bodily harm and violent disorder.
Warren Brooks was cleared of murder but convicted of conspiracy to cause grievous bodily harm. The jury failed to agree verdicts in the case of Kalema.
On 28 June McInerney was jailed for life with a minimum of 18 years before parole.
Wesley Brooks was detained during Her Majesty's Pleasure for a minimum of 12 years. The court heard he was on police bail for the murder when he took part in the London Riots on 7 August 2011.
Brooks was sentenced to a 12 months detention and training order for violent disorder and burglary from a Tesco Store in Cottage Road, Holloway.
Mafwa was detained for at least 12 years and Tirrell Brooks for at least 11 years. The 15 year-old - who was only 13 at the time of the murder - was jailed for at least nine years.
Judge Gerald Gordon said he reduced the sentences because they were only secondary parties to the attack. There was no direct evidence linking them to the stabbing.
Sentencing, Judge Gerald Gordon said: ‘Andrew Jaipaul was just 21 with no known connection to gangs and met a truly terrifying death, the thought of which will always haunt his family.
‘These sort of tit-for-tat attacks of escalating severity are far too common on the streets of London.’
In a victim impact statement read to the court, Andrew's mother Joanna Jaipaul said: 'It is very difficult to put into words the enormous loss and grief we feel. The grief is totally overwhelming.’
Tragically Andrew's father Bob Jaipaul died before the case came to court.
On 15 July 2013 police charged Tony Walker, 20, [18/03/93] of Hazelville Road, Upper Holloway, was charged with murder, violent disorder and conspiracy to cause GBH.
Walker and Kalema went on trial for murder at the Old Bailey on 12 September 2013. Kalema was convicted of murder on 14 October 2013 and was jailed for a minimum of 14 years.
Walker was cleared of murder but convicted of conspiracy to cause GBH and jailed for five and a half years.