Devonte Campbell, a 31-year-old gangland double murderer sentenced to at least 35 years for a 2014 stabbing, has been posting drill rap videos on YouTube and Instagram from behind bars, showing prison scenes and AI-generated content. According to the source, the posts include boasts of earning £20,000 a week, threats of stabbing rivals, and images of expensive watches — all while serving time for the brutal killings of Aaron Carriere and Josiah Manful.

600 followers and a £20,000-a-week boast: Devonte Campbell's drill rap account challenges prison security

Under the alias KayKay, Campbell runs a YouTube profile with 600 subscribers, where he raps about stabbing rivals with a "zombie one" and selling drugs "like a pharmacy." The report notes that some videos appear to be made with AI, while others show genuine prison scenes, including one where Campbell hands out cans of energy drinks to inmates. In Instagram posts, he displays what he claims are Rolex watches worth £10,000.

The lyrics explicitly reference his crimes: "Test the water, you're gonna get wet.. Tesco boys, you're gonna get splashed, face, neck." The source says Campbell shows no remorse, instead vowing violent revenge on rivals and describing prison life as "easy and relaxed."

Retired Met detective calls for extra time, saying prison discipline has 'collapsed'

Retired Metropolitan Police detective Peter Bleksley described the posts as "outrageous" and said Campbell should face additional prison time for breaching the law. "This is a huge failure of the system. discipline in the prison system has collapsed," Bleksley is quoted as saying in the report. He also expressed concern that Campbell might profit from his crimes, noting that the KayKay account could receive fan funding.

The Prison Service is reportedly liaising with YouTube and Instagram to remove footage taken inside the prison, but the source says it cannot control AI-generated videos that depict prison scenes synthetically. This raises broader questions about how a high-security inmate obtained recording equipment and internet access.

AI-generated loophole and unanswered questions: How Campbell keeps posting despite takedown efforts

The technological gap allows Campbell to continue his online presence while technically eluding bans on in-prison filming. The source reports that his YouTube description reads: "Kay Kay is an Underated Artist Dropping Heat From The Behind The Door. Free Him." Among the unanswered questions: Is Campbell monetising his posts? The account has 600 followers, but it is not known if he has received payments . Additionally, how he accessed devices and data inside a maximum-security prison remains undisclosed by the Prison Service.

The case echoes wider concerns about drill music glorifying gang violence, but here the artist is a convicted murderer still incarcerated. As the report makes clear, no internal disciplinary actions against Campbell or staff have been publicly confirmed.