Sutcliffe revealed the moment in newly-surfaced tapes
The warped serial killer, now 70-years-old, begged police not to tell Sonia Szurma of his crimes after he was arrested in 1981.
He confessed to Ms Sczuma himself in a prison confrontation, and justified his crimes by saying he was on a “mission” from internal voices to kill prostitutes.
The mass murderer described the chilling moment in newly-surfaced tapes, according to the Sunday Mirror.
He said: “I personally told Sonia what had happened after my arrest. I asked the police not to tell her, just to ring her and let me explain.
“She had no idea, not a clue. I never had any blood on me or anything.
Sutcliffe was arrested in 1981
“There was nothing to link me, I was taking my clothes home and taking my clothes off and doing my own washing.”
The killer added: "I was working all day long and she was working as a teacher so I could only do it at night.
“She was deeply shocked when I told her. She couldn’t believe it.
The killer was convicted for the murder of 13 women and attempted murder of five others The most notorious criminals in the world Fri, January 6, 2017
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"She knew there must have been something wrong but she had no idea what had happened.
“She was absolutely gobsmacked. It was hard to tell her but rather it come from me than a total stranger.
“I said a lot of things to police which sounded as though I was guilty.
Sutcliffe could now be put back on trial for other historical incidents
“But I’ve never told anyone about the voices and hallucinations, which I now know they were. I had to hide that because I was still on the mission.”
It comes amid reports Sutcliffe could be put back on trial as part of a new police probe into at least thirteen more victims.
Police confirmed they had questioned Sutcliffe over 17 unsolved historic incidents, and reviewing cases bearing similarity to the deranged murderer’s actions during his reign of terror.