Brandon Sillence, a boxing enthusiast, punched Dean so violently he was brain dead before he hit the ground.
Highlights
- Brandon Luke Sillence, 25, launched an attack on Dean Skillin outside a hotel in Bangor, Wales.
- Boxing enthusiast punched Dean so violently he was brain dead before he hit the ground.
- His mother Becky White, who released the footage online, has called for tougher sentences for one-punch killers.
- She said: “What sort of coward hits someone from behind and leaves him on the floor, then walks away knowing the damage he had done?”
- The boxer was found guilty of manslaughter - and acquitted of murder - and jailed for 10 years for the attack.
- A petition, started by the family, has been signed by more than 18,000 people.