AN INMATE who slashed the throat of serial killer Jeffrey Dahmer has explained the reason he faked insanity to approach him. Ex- prisoner Osvaldo Durruthy, 65, said he has “no regrets” for trying to kill psychopathic Dahmer after he pretended he was mentally ill in a bid to get close to him in prison. Wisconsin Department of CorrectionsDurruthy slashed Dahmer’s throat while in prison[/caption] AlamyDahmer was beaten to death with a metal bar in 1994[/caption] Milwaukee County Sheriff’s DepartmentDahmer was killed by another inmate Christopher Scarver[/caption] The Milwaukee killer was bludgeoned to death by fellow inmate Christopher Scarver at Wisconsin’s Columbia Correctional Institution in November 1994. But a few months before he was beaten to death with a metal bar, Durruthy had attempted to kill him by slashing his throat with a razor blade. Nearly three decades later, Durruthy insists he does not regret his actions and would do it again if he had the chance. He told the Daily Mail: “I don’t have an ounce of regret on what I did to Jeffrey Dahmer. I tried to kill him, and I failed. READ MORE ON JEFFREY DAHMER FAMILY MAN Everything to know about Jeffrey Dahmer victim Oliver Lacy 'SCARED TO DEATH OF GIRLS' Jeffrey Dahmer's high school life explained “I don’t even regret having to spend an extra five years in prison because I tried to kill him. And I’m glad someone else got him.” In 1994, Cuban-born Durruthy was handed a 31-year- sentence for possession of drugs and a firearm. He said he became obsessed with killing Dahmer to “make up for the bad things” he had done in his life. He said: “At the time I thought I had nothing to lose, I was facing years in prison that seemed like a life sentence. 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By faking insanity and taking pills for two years, he managed to get diagnosed with schizophrenia. He was transferred to Columbia in June 1994, which had a mental health unit for inmates. .The serial killer was handed 16 consecutive life terms in 1992[/caption] APHe would lure his victim back to his apartment[/caption] About a month after his transfer Durruthy would hide a shiv he made out of a razor in his sock, waiting to use it on Dahmer as they attended services. He recalled: “As soon as I sat down, I removed the shank from my sock, put it in my right hand. “I stood up, with my left arm I put Dahmer in a headlock and with my right hand, I began to slash his throat with the razor shank. I was slashing him back and forth as fast as I could. “After a few slashes, the shank broke. It wasn’t strong enough, it fell out of my hand onto the floor. “He was still in a headlock with my left arm so with my right hand I started to punch him in the face and many times as I could before prison guards jumped in and pulled me off him.” I don’t regret what I did, if I had the chance to do it again I would. Osvaldo Durruthy Security guards eventually intervened and broke them up as Dahmer was sent to the hospital ward and Durruthy was placed in solitary confinement. The failed murder attempt added another five years to Durruthy’s sentence. He was paroled in 2016 after 25 years behind bars. He concluded: “I wanted to kill Dahmer; he ate people. But I guess God was watching over me and didn’t want me to kill him. “I don’t regret what I did, if I had the chance to do it again I would. “I really tried to kill him. I’m glad Dahmer is dead. Maybe when word got out that I tried to kill him, it gave other inmates ideas.” One of the US’s most twisted serial killers, Dahmer, raped and murdered 17 teen boys and men before dismembering their bodies and even eating body parts. The sadistic killer who would drill holes in the skulls of his victims while they were still alive and pour acid onto their brains was finally caught when one of his victims, Tracy Edwards, managed to escape from his apartment. Read More on The Sun FESTIVE TREAT M&S shoppers new 'absolutely magical must have' Christmas item that costs £9 ISLE BE IN JUNGLE I'm A Celeb bosses sign first ever Love Island contestant for next series Dahmer was handed 16 consecutive life terms and imprisoned at the Columbia Correctional Institution in Wisconsin, in 1992. He was killed by Scarver two years later.