Nilsen, originally from Aberdeenshire, Scotland, was a former police officer and civil servant who previously worked as a butcher and is second only to Harold Shipman in terms of the number of murders committed and was described as the “British Jeffrey Dahmer”.He was convicted of six counts of murder and two of attempted murder at the Old Bailey and jailed in 1983, with a recommendation he serve a minimum of 25 years. He told an interviewer how he enjoyed caring for the bodies, dressing them and undressing them and recounted in horrific detail how they were then cut up.While some remains were inexpertly flushed away by Nilsen, others were stored under his floorboards and in cupboards for many months, meaning detectives were greeted with the foetid stench of decay when they first searched his flat.He said: “The bodies are all gone. There is nothing left. But I still feel a spiritual communion with these people.”His house of horrors in Muswell Hill has been on the market several times since and is still occupied today, with flowers visible in the attic window.The sentence given to him in 1983 was later upgraded to a whole-life tarriff.A spokesman for the Prison Service said: “Dennis Andrew Nilsen, date of birth November 23 1945, died in custody at HMP Full Sutton on Saturday, May 12 2018. The serial killer Dennis Nilsen, known as the Muswell Hill Murderer, has died in prison aged 72. Nilsen, who admitted slaughtering young men during a killing spree in the 1970s and 1980s, was jailed for life in 1983. The former civil servant, 72, executed and dismembered many of his victims at his home in Muswell Hill, north London before having sex with their corpses. He is believed to have killed as many as 15 young men, most of them homeless homosexuals, at his north London home.After luring his victims to their death, Nilsen would often sit with their corpses for days before dismembering them.His warped crimes were only detected by chance – when a drain outside his home on Cranley Gardens, Muswell Hill, became blocked by the human remains he had tried to flush away.The Prison Service confirmed that the infamous killer died at HMP Full Sutton on Saturday, 34 years into his life sentence. It is understood that authorities believe Nilsen died from natural causes.Nilsen would often befriend his victims in the pubs and bars of London, before offering to entertain them at his flat.Once there, many were strangled to death – sometimes after they had lost consciousness – and he would then defile their remains.A grim interview, aired in 1993, saw the bespectacled Scottish murderer describe the macabre scenes that followed. “As with all deaths in custody, there will be an independent investigation by the Prisons and Probation Ombudsman.” Nilsen was jailed in 1983Credit:PA Dennis Nilsen gave a television interview in 1993Credit:Central Broadcasting ITV Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings.