A 17-year-old boy who murdered a teenager on a crowded dancefloor at a summer party has been sentenced to life in prison with a minimum term of at least 16 years behind bars.
Charlie Cosser, 17, was stabbed three times in the chest in a marquee on the grounds of a farmhouse at a private party attended by more than 100 people in Warnham, West Sussex, on July 23 2023.