KILLER Axel Rudakubana has made more chilling threats to jail guards since he allegedly attacked a prison officer.
, 18, is now allowed out of his cell only when five staff in riot-gear unlock him.


But a source said: “Rudakubana is pure evil â and the threats have continued
“Staff fear a repeat and he has nothing to lost.
“Threats are noted on the system if a says things like, ‘I will kill you’ or ‘I will smash your face’.
“They are also recorded if a prisoner shouts threats or things like ‘Allahu Akbar’
“Notes have been kept about Rudakubana â and they all point to him being the most dangerous prisoner in Britain.
“It is incredibly rare for someone to be on a five-man unlock.
“The last inmate I can remember who was on it was in the 1990s and he is a much bigger and stronger guy than Rudakubana.
“It just shows how dangerous he is.
“And it is even more rare for someone to be banned from all IT and computer systems.
“That happens only to the most dangerous in the system.
“Inmates cannot go online, but they do things like order from the canteen and education courses on the intranet-style system.
“But even that is seen as too dangerous for Rudakubabana.
“He is completely unrepentant and as far from being rehabilitated as you can get.”;
He is under investigation by police over an incident on May 8, when he is said to have hurled a boiled kettle at guards.
Rudakubana â jailed for murdering three girls in Southport last year â is classed as high-risk.
He is also barred from using any computers or IT systems at HMP Belmarsh, South London.
The Prison Service did not comment.