A 14-year-old youth stabbed his 12-year-old friend to death on a village green, a court heard.
Roberts Buncis was repeatedly knifed in the neck, chest, abdomen and head on Alcorn Green in Fishtoft, Lincolnshire in the early hours of 12 December last year - just two days before his 13th birthday.
A teenager, who cannot be named for legal reasons, went on trial at Lincoln Crown Court on Tuesdays, charged with murder.
Jurors were told how the Latvian schoolboy was “lured” to his death in the early hours of the morning by the defendant, who he considered a friend.
Opening the case, prosecutor Mary Loram QC, said he was then subjected to “a brutal prolonged attack with a knife”.
“In this case, the person accused of carrying out that attack and of killing Roberts is this defendant who is 14-years-old and seems to be a friend of Roberts from the evidence we will be looking at,” she said.
“We say that he lured him out of his home to kill him because we have the phone records of the phones belonging to both Roberts and the defendant.”
Loram said the boy was left to die on the village green where his body was later found at 10am.
He was found with stab injuries to his right side, shoulders, arms and three severe stab wounds to his head with the tip of the blade lodged in his skull.
It also appeared as if his attacker had tried to cut off his hand.
The court was told the defendant later sent messages to other friends on Facebook Messenger admitting "things went wrong".
He also wrote: "This wasn’t supposed to go down like this”.
One set of messages sent at 10.39am on December 12, read: “Bro I have done something bad.
“You’re going to have to promise me you will never ever tell anyone this and don’t hate me for it. It’s serious.”
Loram also told the court a knife was found under a pot in the garden at the house where the defendant lived.
"On that knife was the blood of Roberts and also of the defendant,” she said.
“There was a Nike top that was found partially burnt and in the pocket of that top were some latex gloves.
"These had the defendant’s own blood on them and that must have been from a significant cut that he had to his hand.”
The court heard that Roberts' DNA was found on the gloves as well as on a balaclava also found in the garden.
“It is clear that this defendant is the one who stabbed and killed Roberts,” she said.
The court heard that one of the defendant’s friends, who was also friends with the victim, went to the police with what he knew after the body was found.
Loram said: “The defendant, when he was arrested, answered no comment to all the questions put to him.
Speaking about the extensive injuries, she said: “The injury to one of the hands was such it looked as though the attacker, this defendant, had tried to cut it off.
“This was not lashing out, to cause this amount of injury must have taken time and it was truly a sustained attack.
“The tip of the knife was missing and the tip of that knife was found in Roberts' body and when it was examined it was still lodged in his skull.
“So he had been struck with such force to break that tip off the knife.”
Loram said Roberts himself had mentioned knives in his own messages, including one in which he said he was jealous of the defendant and would stab him.
She added: “It will be obvious to you when you look at the messages these children did not live lives that many 12, 13 and 14-year-olds do at least in some ways.
“There is a lot of talk of drink and drugs in the chat then you would ever want to see between those who are so young.”
The defendant has denied murder and the trial continues.
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