This is the teenager who led a brutal mob attack on a 15-year-old boy in a city park in which he almost lost an ear after he was slashed with a knife.
This paper can today reveal in full Tyler Tomkinson's involvement in the attack in Chapelfield Gardens which left a youth with his ear almost severed in two.
Tomkinson, now 19, was given an extended 13 year sentence after he admitted unlawful wounding causing grievous bodily harm (GBH) and wounding with intent to cause GBH following the incident in November 2016 when he was 18.
He was sentenced in April but we were barred from publishing details until the end of a trial of two other youths said to be involved in the attack.
The trial at Norwich Crown Court finished today with the jury finding one 14-year-old boy guilty of GBH with intent and having a bladed article.
He was part of a group which the jury heard had been punching and kicking the victim while Tomkinson had carried out the attack.
He will be sentenced in September following reports from the youth offending team.
Another young defendant, who was 17 at the time, was cleared of GBH with intent and of having a bladed article.
This paper had applied to have reporting restrictions lifted against the youth found guilty of the attack but the application was refused.
Judge Katharine Moore however did give permission to name Tomkinson and reveal his full involvement as the 'principal assailant' in the attack and another violent incident in the city a year earlier.
The court heard the 15-year-old victim had gone to Chapelfield Gardens initially out of concern for a friend who had been threatened earlier that day.
When the victim and his friends arrived they encountered Tomkinson who was with a group of about eight others.
The victim spoke to one of the group about his friend who had been threatened earlier when Tomkinson barged into him.
He lifted up his shirt 'revealing a knife in the waist band of his trousers' and punched the victim in the face, knocking him to the floor.
The victim got back up before being pulled back to the ground by others in the group, one of whom shouted 'shank him'.
Lindsay Cox, prosecuting, said the victim was 'aware of a man trying to stab him' and 'slashing at his neck'.
'He was lying down defenceless while this brutal attack continued'.
The victim, who had put his hands up to try and repel 'the onslaught' was struck in the ear by the knife.
Mr Cox said he eventually managed to get to his feet and ran off.
The incident was seen by a number of other youths who describe Tomkinson as 'slashing' at the victim with a knife or hatchet type blade.
The victim sustained cuts to his upper arm and defence wounds to his hands and fingers but most seriously a 'bisected ear' which required plastic surgery to correct.
Others, also armed with weapons, were also involved with the incident, described by Mr Cox as a 'brutal mob attack'.
Following the attack on the 15-year old Tomkinson then punched another youth in the face twice resulting in a fractured eye socket.
Tomkinson, previously of Devonshire Street, Norwich, also admitted an offence of wounding with intent and having a bladed article.
It followed an incident in December 2015, when he was 17, where the victim suffered a nasty laceration to his lip and face, which required cosmetic surgery, after he was attacked with a knife in the underpass near Grapes Hill.
Handing down an extended 13 year sentence to Tomkinson, who will serve eight years in custody and five on licence, Judge Moore said it 'was quite clear he had 'no respect for authority' and had a tendency to 'engage in group violence'.
Judge Moore said she agreed with a pre-sentence report which indicated that he was of a 'very high risk of causing serious harm to others'.
She said: 'It's relatively rare for young people to meet the dangerousness criteria but in my judgement you are properly to be regarded as a dangerous offender.'
Mark Roochove, mitigating for Tomkinson, said he went into care at the age of about three or four and found it extremely difficult to cope.
'He accepts he was an angry young man,' said Mr Roochove.
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