Convicted pedophile Gary Oliva who confessed to 'accidentally' murdering JonBenét Ramsey has gone missing

The convicted pedophile who claimed he 'accidentally' killed 6-year-old JonBenét Ramsey, has gone missing from the halfway house he was court-ordered to reside. 

Gary Oliva, whose admission has once again been highlighted by a Netflix docuseries on the sensational unsolved murder, is now listed in Denver as a 'transient' who only has to check in with cops once a month.

For the rest of the time, no one has any way of knowing where he is.

'Gary must physically come into the police department every month and sign a document stating that he is a transient and listing the area or shelter where he stays, a Denver police detective told DailyMail.com.

'But there is no way to be certain that he spends time or nights at the shelter.

'He very well could be lying to us; it's happened in the past with other sex offenders.'

Oliva, 60, last checked in with cops in early November, in compliance with the rules.

He had been living in Room 12 of the Silver Spur motel in the East Colfax area of the Mile High City, but hasn't been seen there in months.

A resident at the seedy, 15-room facility, which houses at least two other sex offenders told DailyMail.com: 'He kept to himself and did not socialize with the other tenants.

'He was strange even by the standards of the tenants at the motel. He talked to himself a lot.

'Then one day we all realized he was gone, and we have not seen him since. It's like he disappeared off the face of the earth.'

Even court documents issued in May for trespass described him as 'transient'.

Oliva sensationally confessed in several 2019 letters from prison that he had accidentally killed JonBenét over Christmas 1996, first reported by DailyMail.com

'I never loved anyone like I did JonBenét and yet I let her slip and her head bashed in half and I watched her die,' he wrote to his high school buddy Michael Vail.

'It was an accident. Please believe me. She was not like the other kids.'

He confessed to other killings, writing: 'I'm a serial murderer. I have a disorder that cannot be stopped. I've told the detectives all the murders I can remember. All of them pan out. They just can't prove any of them.'

In another letter, he wrote: 'JonBenét completely changed me and removed all evil from me. Just one look at her beautiful face, her glowing beautiful skin, and her divine God-body, I realized I was wrong to kill other kids. Yet by accident she died and it was my fault.'

At the time Oliva was serving an eight-year prison sentence for having child pornography on his phone. He also had hundreds of pictures of JonBenét.

He is on parole until February 1, 2027, according to a parole agreement obtained by DailyMail.com 

Oliva had also previously been sentenced for sexually molesting a seven-year-old girl and was jailed for 17 months for trying to strangle his mother with a telephone cord.

The convicted pedophile was interviewed by police in Boulder after music publicist Vail handed the letters over, but was never charged as his DNA did not match that at the scene of the little pageant queen's home.

The Netflix documentary, Cold Case: Who Killed JonBenét Ramsey?, has raised the prospect that Oliva should still be considered a suspect because the DNA evidence is unreliable.

According to the documentary, Oliva's name was mentioned to police 'very early' in the investigation.

He had sexually assaulted a neighbor in Oregon and, living rough, ended up in Boulder at the time JonBenét was killed. He was using an address ten blocks from the Ramsey home.

Vail told DailyMail.com in 2019 that Oliva had called him in tears on the night of December 26, 1996 – the night that JonBenét's body was discovered.

'He was sobbing and said, "I hurt a little girl,"' Vail said.

'I tried to get more information out of him. The only other thing he told me was that he was in the Boulder, Colorado area.

'On December 27 I read on the front page of my local newspaper 'Girl, 6, slain in Boulder, Colorado'. I knew I had to alert the police,' he added.

'I immediately called the Boulder Police Department and told them what I knew about Gary and what he had told me just days earlier. They didn't get back to me.'

Kurt Pillard, the investigations commander at the Colorado Springs Police Department, confirmed in the documentary that a friend of Oliva's said the pedophile had called him in a 'distraught' state after JonBenét was murdered.

'Cold Case' featured disturbing TV interviews with Oliva, from the time of the killing, in which he salivates over JonBenét's appearances in beauty pageants.

The deranged pedophile said: 'When you see the footage of her in her little cowboy suit going I want to be a cowboy's sweetheart, I've never seen anything like it.'

 At the time, he denied being involved in her death but bizarrely claimed that JonBenét 'came to me after she was killed and revealed herself to me'.

But after Oliva's admission that he had 'just hurt a little' girl, Boulder police took a 'hard look' at him.

According to the documentary, when police went to find Oliva, they discovered his tent was full of pictures of JonBenét.

But when his DNA did not match that found at the scene, he was ruled out.

The DNA evidence in the case has long proved problematic and Boulder police have been heavily criticized for mishandling the investigation.

In 2015, former Boulder police chief Mark Beckner admitted crime scene evidence may have been mishandled on a Reddit forum.

'The crime scene was not handled properly and this later affected the investigation,' he said.

Nobody has ever been charged in the 28 years since JonBenét's lifeless body was discovered by her father John Ramsey in the basement of the family home.

Detectives believe she was murdered the night before on Christmas Day through either a blow to the head or strangulation with a garrote.

'Cold Case' claims that the killer would be a 'very specific pedophile' who had likely seen one of JonBenét's beauty pageants.

Multiple experts said in the documentary that there may well be a problem with the DNA that was collected from the crime scene, which was contaminated due to a catalog of police errors.

Charlie Brennan, a journalist who has covered the case from the start, said in the film that the 'DNA in this case has been problematic from the beginning'.

Michael Tracey, a TV producer who made one of the first major documentaries about the case and has been a staunch believer in JonBenét's parent's innocence, said that if the DNA is faulty then 'a lot of people would still be suspects'.

JonBenét's stepbrother John Andrew Ramsey told the documentary makers that 'if the DNA isn't as valuable as we think then we've been ruling people out for the wrong reasons'.

'Everybody should be back on the table', he added.

John Andrew Ramsey urged police to go 'deeper' with the samples from the crime scene and 'sort the DNA we have today and make more sense of it'.

JonBenét's father John demanded that police finally sample five or six items that were taken from the crime scene but have never been analyzed.

He stated he wants items that have been tested to be resampled due to advances in technology and then compared with the public genealogy database to look for a potential match, as has been done in numerous other cold cases.