A convicted murderer has appeared to release a rap album despite serving life in prison for a callous stabbing.

https://twitter.com/TheRealMover/status/891437602120892416

Terngu Agera, known as Mover and Muni, knifed builder Zydrunas Laurinavicius to death in front of the victim’s father in broad daylight in May 2015 during a mugging.

Although he is serving a minimum of 30 years, the category A prisoner looks to have made “new and final tape” Exit Wounds with outside help after it was promoted on a Twitter account bearing his rap name.

His almost 7,000 followers are being encouraged to purchase the 16-track record for £6.99 or 79p per song on iTunes, as well as go to Spotify, in a pinned tweet from July 29.

It states: “Go grab my new and final tape Exit Wounds out now on all major digital outlets!” and has been retweeted 828 times and liked by 641 people.

The list of tracks including Conversation with a Fan and Muni Calling contain lyrics which appear to reference Agera’s crimes such as “took the rap for the M but we both got life, that’s pain”.

Other lyrics include “murder squad got me 30 locked”, “spend thousands just on my guns” and “her friends keep tellin’ her, she fell for a felon-er”.

Agera, of Sophia Road, Custom House, caused uproar last year when a five-minute, 30-second track surfaced online on YouTube under his name.

He was 23 when an Old Bailey judge sentenced him for Lithuanian national Mr Laurinavicius’s murder alongside Stephen Lansana, then 22 and of no fixed address, on May 15 2015.

A Prison Service spokeswoman said:“This behaviour is completely unacceptable and we are taking immediate action. We are clear that those who break the rules will be punished and can face extra time behind bars.

“We are taking decisive action to find and block mobile phones in prison, including a £2million investment in detection wands and legislation to block phones from being in prisons.”

A Metropolitan Police spokesman said: “This is not a police matter.”

When asked why the account had not been taken down, a spokesman for Twitter said the company did not comment on individual accounts for privacy and security reasons.

He added: “Our law enforcement guidelines and request form are clear, and available for police to use 24/7.”

Representatives for iTunes and Spotify have also been contacted.