Kent tree memorial on Michael Chapman's 21st birthday
A tree planting ceremony has taken place to mark what would have been the 21st birthday of a boy from Kent who was killed at the age of 16.
Michael Chapman, from Sittingbourne, was kicked and punched to death on school playing fields in June 2006.
His killer Lee Cowie, then 19, admitted manslaughter and served two years in a young offenders' institution.
An oak tree was planted by the Mayor of Swale at the spot where Michael died.
Cowie, Michael's former friend, was sentenced to four years in a young offenders' institution in May 2007 after pleading guilty to manslaughter. He was freed in June 2008.
Michael's parents, Lloyd and Sue Chapman, have been campaigning for tougher prison sentences and for offenders to serve their full terms.
Following his death, they launched the campaign Protect Our Children Against Violence.