A Kentucky child killer who butchered a boy to death in his sleep ended up being released from prison nearly a decade early for good behavior — only to be re-arrested just weeks later for violating his parole.

He’s due to be released again next year — this time with no parole restrictions.

Ronald Exantus, 42, of Indianapolis, was slapped with just a 20-year sentence after he broke into 6-year-old Logan Tipton’s home in Versailles, Ky., and went on a late night stabbing frenzy back in 2015, Lex18 reported.

He used the insanity defense, and was found not guilty of murdering the kindergartner — but was convicted on three assault charges for knifing the other members of the Logan’s family.

After racking up good behavior credits in the slammer, Exantus wound up shaving more than 9 years off his sentence and became eligible for early release in October — sparking fury from the little boy’s family.

“Something needs to be changed because it cannot be that easy. You’ve committed a very heinous crime and it’s just given to you,”  Logan’s sister, Kora Tipton, said of Exantus’ early release.

Logan’s grief-stricken family blasted the ordeal as they prepared to commemorate what would have been the slain boy’s 16th birthday over the weekend.

Exantus was cut loose from the Kentucky prison on Oct. 1 and moved to Marion County, Fla., Sunshine state officials said.

He was re-arrested just eight days later after he failed to register as a convicted felon with the local sheriff’s office within 48 hours of arriving — as required by the conditions of his parole.  

Exantus has since been extradited back to Kentucky.

But a second quirk in Kentucky’s prison regulations means that he could get out again next year — this time with no parole.

The family, as well as state lawmakers, are now pushing for reforms to Kentucky’s mandatory re-entry supervision laws in a bid to crackdown on how much good time can be factored in before being released.

“Anecdotally speaking, I’ve seen people get good time credit for learning to play guitar — it was considered an educational credit which reduced the time of their sentence,” Kentucky Commonwealth’s Attorneys’ Association president Ronnie Bowling said.

In Exantus’ case, he was given five years good credit for following the rules, two years for exceptional meritorious service and 10 months for educational programs he completed.

Meanwhile, state Rep. Jason Nemes is trying to introduce Logan’s Law to ensure those found guilty by reason of insanity are sent to a mental health facility.

“We need to make sure that we clean it up to say that if the jury finds that you committed the crime, but that you can’t be held responsible and go to prison because of your you were insane at the time, which by the way we need to limit in and of itself,” he told WYKT.

“But if the jury makes that finding, then you can’t go back out in our communities immediately. You have to go somewhere.”