Charlie Cosser's family 'scarred for life' as son's killer guilty of 'three second act of pure evil' murder

Charlie Cosser pictured in his red football kit
-Credit: (Image: Cosser Family)

The father of Charlie Cosser, a teenager who was murdered at a party last summer, has said the family is "scarred for a lifetime" after hearing what happened to their son in his final moments, as his killer now faces a lifetime in jail.

Charlie, from Milford in Surrey, died aged 17 after being stabbed three times in the chest at an outdoor party in Warnham, Sussex.

After four hours of deliberation at Brighton Crown Court, the jury unanimously convicted a 17-year-old of murder and having a bladed article on Tuesday, June 4.

Martin Cosser said: “We were hugging each other [after the verdict]. It’s bittersweet because I promised Charlie some level of justice before we switched off his life support machine. We can finally say the words 'he was murdered'.”


Tara and Martin, Charlie's parents, and Charlie when he was a baby
Tara and Martin, Charlie's parents, and Charlie when he was a baby -Credit:Cosser Family

Martin said: “This doesn’t bring Charlie back, and it’s a lifetime of everything Charlie is going to miss out on because someone decided to pick up a knife. He won’t be called dad, he won’t get to say ‘I do’, he will never meet his baby nephew.”

He added: “If it could happen to Charlie, it could happen to anyone. He really was the most gentle, kind, beautiful son. As a family we had to listen to some things that happened to Charlie that will scar us for a lifetime, like how he was found. No words can describe the anguish, pain, loss and sorrow that three-second decision of pure evil has caused."

Following an altercation on the dancefloor of the party, Charlie was found laying down outside the marquee, covered in blood. He suffered a cardiac arrest on the way to hospital and died two days later on July 25, 2023.

Charlie’s family extended thanks to family, friends and everyone who has supported them and their charity, launched in Charlie’s legacy, called Charlie’s Promise.

Charlie Cosser, 17, tragically died on July 25
Charlie Cosser, 17, tragically died on July 25 -Credit:Sussex Police

The Cosser family’s charity, has seen Martin host moving talks at schools across the country, warning children of the dangerous of knife crime.

“Even if my charity can save just one life, it’s worth it. I’m taking bookings to talk to schools for the next calendar year, and tailor my talks on the age group I am talking to, it’s not about scaring children.” Martin added.

Charlie’s Games is an event that will be hosted on August 17 in Charlie’s home town of Milford on the Jubilee Field. There will be a fun run in the morning at Charterhouse School, where Charlie was employed, and then games, food and live music in the afternoon on the field.

All are welcome to attend, and donations will go towards Charlie’s Promise charity. The run takes place at 8.30am, and the games begin from 2pm at Jubilee Field in Milford. For more information on Charlie's Promise, visit the website here.

The youth chose not to give evidence in the trial but denied murdering Charlie and having a bladed article. The teenage defendant, who was 16 at the time and is now 17, will face life imprisonment for the attack following the trial at Brighton Crown Court. The defendant will be sentenced on June 19.

You can see the latest crime and court news from Surrey in our free newsletter here .