Chilling CCTV footage shows of the moments before and after a birthday boy went on a drunken violent rampage and murdered a stranger.
Brian McKillop savagely murdered the complete stranger after a day of drinking on his 18th birthday, by repeatedly stamping and kicking him in the head and body.
The teen has now been jailed for a minimum of 11 years and three months, after pleading guilty to the murder and robbery of 51-year-old James Britton.