An inmate posted gloating prison selfies on Facebook while serving a life sentence for murdering a 16-year-old boy.
Lee Firman was caged for killing Glen Corner on the night the teenager was celebrating his 16th birthday.
Glen, who had also passed his GCSEs that day, was stabbed twice by thug Firman.
Brave Glen was left in a pool of blood after trying to protect a friend after being stabbed.
Firman, then of South Shields, was given a life sentence with a 16-year minimum limit after admitting murder.
But the killer has flouted strict laws forbidding the use of