A 19-YEAR-OLD man accused of murdering teenager Jimmy Mizen "reached for any and every available weapon" to attack the teenager and his brother, the Old Bailey has heard.

During the prosecution's opening statement in the trial of Jake Fahri, the court heard how a "trivial argument escalated into something horrific".

Prosecutor Crispin Aylett said "three minutes of complete madness on the part of the defendant" led to the death of a "much-loved teenager".

The court heard how on the morning of May 10 last year 16-year-old Jimmy, of Dallinger Road, Lee, and his older brother Harry, now 19, went to the Three Cooks bakery in Lee to buy a sausage roll.

Fahri, of Millborough Crescent, Lee, was standing in front of the brothers in a queue waiting to buy a sandwich before changing his mind and deciding to go outside to look at the cake display through the window.

It is alleged that when trying to leave the shop, Fahri barged into Jimmy who then refused to move out of his way.

Jimmy, who was 6ft 2in tall and weighed 14st, "stood his ground and said why don't you just walk around me" or say "excuse me".

Mr Aylett said the defendant then turned to Harry and poked a key into his face saying "you grassed me up to the police" - referring to an incident where Harry's mum, Margaret, reported Fahri to police after he punched Harry in 2003.

The court then heard how the defendant said "OK - you two outside" but the two brothers said they were staying in the shop, leading Fahri to say "I will wait for you outside."

Harry then called his older brother, Tommy, asking for help, but Fahri saw him making the call and allegedly barged his way back into the shop. He swore at the brothers and shouted "you are cowards".

It is alleged that Fahri then took two plastic bottles from the bakery's drink cabinet and threw them at Jimmy's head.

Mr Aylett said this triggered the Mizen brothers to fight back, pushing Fahri out of the shop while punching him. They held the door shut so he could not get back in.

According to the prosecution, Fahri "was by now furious" and picked up an advertising board before smashing the glass door and re-entering the bakery when the brothers took a step back.

Mr Aylett alleged Fahri then raised the board to hit Jimmy with it, causing the 16-year-old to flee behind the shop's counter.

According to Mr Aylett, this is when Fahri picked up a "Pyrex-type dish" and threw it at Jimmy.

The dish was "thrown so hard it broke on impact" as it hit Jimmy's neck and jaw, severing his jugular vein and carotid artery while cutting a bone in his neck.

With blood flowing from his neck Jimmy staggered into a cupboard to protect himself, the court was told.

It is alleged Fahri ran from the shop "shouting with a smirk on his face" while Harry chased after him.

The court heard how Jimmy's older brother, Tommy, then arrived at the bakery shortly after the incident and cradled his younger brother in his arms. Jimmy's mum arrived shortly afterwards.

Mrs Mizen, who cried when hearing the evidence read out in court, fainted when she saw her son lying on the floor in a pool of blood.

According to the prosecution, Fahri, who claims he was acting in self-defence, told police: "I grabbed the glass and then threw it. I thought he would put his hands up. I didn't think it would hit him."

He also told officers he "was sorry for what had happened" and he "didn't want to cause him serious harm".

The court also heard how Fahri had kicked and spat at his ex-girlfriend in an internet cafe in November 2005. He was given a supervision order and made to pay the young girl £50 in compensation.

Fahri denies murder. The trial continues.