Wetherby Young Offender Institution inmate used improvised weapon to stab rival teenager during revenge attack in exercise yard

Jaro Wilson was serving a sentence for wounding with intent when he was involved in the joint attack at Wetherby YOI.

Leeds Crown Court heard Wilson and a teenage murderer, who cannot be identified, used a sharpened toothbrush to stab the victim in the exercise yard in May last year.

The 17-year-old was handed an extended sentence totalling seven-and-a-half-years after pleading guilty to wounding with intent and unauthorised possession of a weapon inside a prison.

Ayesha Smart, prosecuting, said the attack happened on May 14 last year.

Wilson was walking back into the unit in front of the victim and the murderer was walking behind the victim when Wilson stopped and started throwing punches at the victim.

Ms Smart said the murderer produced a blade fashioned from a toothbrush to stab the victim multiple times to his head and upper body.

The victim fell to the ground and put his arms up to protect himself.

Wilson, who turns 18 this week, stamped on him and asked the murderer to pass him the weapon as the prison officer was raising the alarm.

He was handed the weapon and managed to stab the victim around three times in the head before the prison officer pushed him away.

The victim was left covered in blood and needed treatment for puncture wounds to his head and face.

Wilson's accomplice was convicted of murder when he was aged 15 and handed a life sentence with a minimum term of 14 years.

In December last year, the 16-year-old was handed four-and-a-half years in detention to be served after the minimum term he is currently serving.

He had pleaded guilty to unauthorised possession of a weapon inside a prison and affray, as well as wounding with intent and unauthorised possession of a weapon inside a prison in relation to a separate attack on another victim.

Wilson has nine previous convictions for 15 offences, including possession of a bladed article and a robbery in which a knife was used.

James Hasslacher, mitigating, said Wilson admitted the offences at an early stage.

Wilson must serve two-thirds of a four-and-a-half-year custodial period followed by an extended licence period of three years.