Infamous US hitman Richard 'The Iceman' Kuklinski, who claims to have killed between 100 and 250 men, made a confession about the one murder he feels guilty over.
Kuklinski was charged in 1986, but cops would only be able to pin five murders on him. He was eventually sentenced to serve life in prison, having escaped the death penalty on a technicality.
Between being sentenced in 1988 and his death in 2006, Kuklinski would go on to claim between 100 and 250 murders.
He was given his brutal nickname because of his method of freezing his victims so authorities would struggle to identify the time of the killing.
In a number of interviews over the years, Kuklinski opened up about his crimes, and yet still managed to look completely remorseless when mentioning the number of men he had killed.
Except for in this recently resurfaced interview from 1991, where he looks to feel a pang of guilt - for one of his crimes, anyway.
Advert
Credit: The History Channel
In a pretty emotionless voice, he tells the interviewer: "It was a man and he was begging, and pleading, and praying, I guess.
"And he was 'Please, God'-ing all over the place. So I told him he could have a half an hour to pray to God and if God could come down and change the circumstances, he'd have that time.
"But God never showed up and he never changed the circumstances and that was that. It wasn't too nice.
"That's one thing, I shouldn't have done that one. I shouldn't have done it that way."
He didn't give any details about who the victim was, but it must have meant something for him to have remembered it after racking up a body count as high as he did.
Credit: The History Channel
Advert
He was caught by an undercover officer from the New Jersey Police Department, who pretended to be a killer needing help on a hit. Kuklinski was recorded telling the cop, in detail, how he could carry out the murder.
He was charged with five murder counts, as well as attempted murder, robbery, attempted robbery and weapon violations - he was sentenced two years later.
Kuklinski managed to successfully live a double life, with his wife and three children unaware of his crimes.
Working for New York's Five Families of the America Mafia and Newark's DeCavalcante crime families, Kuklinski was also known as 'the devil himself' by his fellow mobsters.
Featured Image Credit: New Jersey Police Department