Viral Video of Murdered Teen Charlie Cosser Resurfaces After London-Bound Train Knife Rampage as Britain Cries Out: ‘Knife Crimes Must Stop’

A TikTok video featuring Charlie Cosser, a teenager killed in a knife attack, has gone viral, attracting 4.7 million views just hours after a mass stabbing incident on a London-bound train. The video, shared by Charlie’s father, Martin Cosser, has sparked renewed public concern over knife crime in the UK, especially in the wake of the train attack that left several individuals critically injured.

Charlie Cosser was fatally stabbed during a house party in Warnham, West Sussex, on July 23, 2023. His attacker, Yura Varybrus, was convicted of murder and sentenced to life imprisonment in June 2024. The case has garnered significant attention and prompted discussions around youth violence in Britain.

On November 1, 2025, a violent stabbing spree occurred aboard an LNER train, leading to an emergency stop and the arrest of two suspects. Counter-terrorism police are now involved in the investigation, although a motive has not been confirmed. Authorities have stated that there is no broader threat to public safety.

Martin Cosser, the founder of the charity “Charlie’s Promise,” has been advocating against knife crime since losing his son. He aims to introduce knife-crime education in schools and has raised awareness through social media. His advocacy has resonated widely, as evident from the surge of hashtags like #CharliesPromise and #EndKnifeCrime on social media.