Connor Chapman's accomplice appeared in court with his face cut and bruised after he was battered with a kettle in prison.
Thomas Waring was "smashed across the face" with the makeshift weapon by a fellow inmate, who told him "that's what happens to grasses". The assault occurred inside HMP Altcourse on Wednesday evening.
His barrister William England raised the issue with trial judge Mr Justice Goose this morning, Thursday, in the absence of the jury at Liverpool Crown Court. He had been concerned that jurors may notice his client's facial injuries, with a bruise to his right cheekbone and reddening above the eye on the same side of the 20-year-old's face visible from the public gallery.