Pictured: Teenage son of Ukrainian parents who stabbed boy, 17, to death on crowded dancefloor is revealed as anonymity order is lifted

A teenage killer who fatally stabbed another boy on a crowded dance floor can be named for the first time today after applications from reporters lifted the order protecting his identity.

Yura Varybrus, the son of Ukrainian parents, knifed Surrey teen Charlie Cosser after being asked to leave an end-of-term party in the grounds of a £1.5million country farmhouse last summer.

Varybrus, who will be 18 in November, had never met Charlie before the party at Balmohano Farmhouse near Warnham, West Sussex.

He can be named for the first time after applications from reporters were allowed by Judge Christine Henson, as a picture of him at the age of 14 was revealed.

Varybrus had been drinking heavily throughout the night and claimed he could not remember anything about the killing.

Despite going to the same school as some of the other guests, Charlie and his killer had never met.

Charlie's father Martin Cosser said: 'He's well known and I know people are scared of him.

'The DCI told me when he told him Charlie had died, he didn't even flinch.

'He's known to carry a knife and so is his friend, who I think gave the knife to him.'

The killer's father Ihor Varybrus lives in West Sussex and mother Julia lives with her new partner in Surrey.

The trial jury were never told Varybrus had already pleaded guilty to murder days after Charlie died.

Then 16, he replied 'Guilty' in a clear voice when the charge of murder was put to him in July last year.

He exchanged a raised fist salute with his father as he was taken down from the dock at Lewes.

Speaking after the hearing, his father said: 'It's not just him, we are all guilty.

'He is a child, we are all responsible and should have been making sure they were not drinking. I never saw him drinking before.

'I haven't been able to see him for five days and he is only 16 - he is a child.

'We need him to know we love him and we will stay with him all his life.'

The judge is due to sentence Varybrus at Brighton Crown Court later today.

Charlie's brother revealed earlier this month how he told the victim he was going to be an uncle just moments before life support was turned off.

Older sibling Adam described his final moments with his brother and said he broke the news to him that he and fiancée Jade Avery were expecting a child.

Adam had hoped to tell Charlie at a family celebration, planned for a few weeks later, but instead had to make the revelation while his brother lay in a hospital bed.

He told The Times that he and Ms Avery had leant over the stabbing victim and whispered the news into his ear.

Adam, 28, said: 'We believe Charlie knew but, the fact we don't necessarily know, that hurts us a lot.'

The couple's son Albie Charlie Michael Cosser was born earlier this year and is now three and a half months old.

The heartbroken brother, who works as a football development manager, explained how he couldn't help but be reminded of another time he had visited his sibling in hospital - the day he had been born.

Charlie went on to become a talented footballer who made an appearance for Brentford's academy and, at the age of seven, once scored eight goals in a ten-minute match - much to his brother's delight.

The 17-year-old had been planning to head off on his first 'boys' holiday to Zante in the week he died and attended the party in a field in West Sussex on July 23 despite knowing just two people there.

Charlie had recently started work as an apprentice groundsman at Surrey private school Charterhouse and dreamt of being on the ground staff at Premier League football club Chelsea.