This is the moment a jealous teenager was arrested after stabbing to death a schoolboy he wrongly accused of talking to his ex-girlfriend on the victim's prom night.

Patrick Sharp-Meade, 20, confronted Kajetan Migdal, 18, and his friends while wearing a balaclava and carrying a large zombie knife concealed down his trousers.

He believed they were the group who he'd heard talking to his ex-girlfriend when she had phoned while on her way to his flat a few minutes earlier.

After asking Kajetan if he was 'from these ends', Sharp-Meade then pulled out the knife and stabbed him through the heart.

Kajetan - who had never met Sharp-Meade before that night and did not know his ex-girlfriend - died in hospital in the early hours of the next morning.

Kajetan Migdal

The boys were changing their clothes at Kajetan's car and had planned to heading into Cambridge to celebrate leaving school when the attacked happened.

After the stabbing, Sharp-Meade returned to his flat and hid the knife in his mattress. He fled the scene but was traced by the police and arrested shortly afterwards.

Today (May 17) he was jailed for life for Kajetan's murder, which happened on May 27 2022 after he'd left St John Henry Newman School's prom in Stevenage.

Sharp-Meade previously pleaded guilty to possessing the knife and a small number of wraps of cocaine that were found in his shoe during his arrest.

He accepted that he had stabbed and killed Kajetan but denied murder.

However it took the jury of six men and six women just over 24 hours to reach their verdict after a trial at Luton Crown Court.

Judge John Hillen said: "Kajetan Migdal was 18 years old when you killed him. He was a remarkable young man.

"He was larger than life; talkative, happy, a talented dancer who had appeared on national television, a bright student about to undergo a gap year before going to university.

"Everything pointed to a great future for Kajetan. He was someone who loved and was loved.

"It is a testament to Kajetan that nearly 1,000 people attended his funeral mass, and he was remembered in churches in Poland, all over Europe and in the wider world.

"He has had awards and a studio named after him, there have been and will be dance performances in his memory, a tree was planted to commemorate him.

"This is the person you murdered, depriving him of his life and depriving his family, his friends, and the world of his promise.

"The knife you picked up was not a normal knife, it was a knife to kill and maim. You are manipulative and have been described as cunning."

In a heartbreaking impact statement read to the court, Kajetan's mum Gemma Migdal said he was the 'life and soul' and 'beating heart' of their 'happy household'.

She said: "Our home is now empty, quiet. The vacuum that has been left behind is enormous. It engulfs us all, all of the time.

"The joy in our lives has been put out. The laughter has gone."

She said Kajeten died before knowing what his A-level results were and had plans to take a gap year and work for an animal charity before heading to university.

She added: "He was raised a Christian and we are proud that he lived out those values in his life, with an energy, a passion and a kindness unparalleled by many.

"Kajetan was larger than life. He was always smiling, always talking, always making plans. He wore his heart on his sleeve and he was sensitive to the needs of others.

"He listened to what people said, and he cared enough to remember, making his gifts at birthdays and Christmas extra special.

"He knew how to love and care for people, and his emotional maturity was way beyond his young years.

"After his death we lost count of the number of young people who barely knew Kajetan but who approached us wanting to share with us how grateful they were that he reached out to them when they were feeling marginalised, vulnerable and lonely.

"He had a special ability to sense when someone was feeling outcast, especially the neurodiverse.

"It was not in Kajetan's nature to be able to turn his back on people in need. He had the empathy and kindness of heart to include people when others might not. "

Kajetan's dad Janusz is self-employed and was incapable of resuming work for months in his distress following his murder, Mrs Migdal said.

She added: "He still finds it a struggle to work anywhere near as productively as before, leading to huge losses in earnings.

"I have also been massively impacted in my work. After 22 dedicated years of hard, successful work in a job I once loved, I now, for various reasons exacerbated by my vulnerability in grief, feel unable to continue.

"We are exhausted. Fatigue has made us lose our fight in life. Financial stress continues to compound our grief.

"Kajetan's father is still so deeply affected by our loss that he has been unable to face attending the trial and having to hear the awful details of what happened.

"I have had to attend without his support, which has been doubly difficult. Even when I return home each evening he cannot bear to hear about it."