Overview

• CCTV shows the defendant thrusting a 13cm serrated hunting knife into 15-year-old Harvey Willgoose’s chest just five minutes into the lunch break.
• Home Office pathologist Dr Philip Lumb testified that the 8cm deep wound severed Willgoose’s fifth rib, nicked the one below and penetrated a heart chamber.
• The unnamed 15-year-old has admitted manslaughter and possession of a knife on school premises but denies murder, disputing any premeditation.
• Witnesses described a Snapchat fallout and a prior lockdown triggered by a reported knife sighting that heightened tensions between the pupils.
• Courtroom evidence has intensified calls for stronger school security measures and greater action against youth knife crime.