A convicted killer serving six life sentences for his role in the Houston Mass Murders has a Facebook page, it has emerged.

The news of Elmer Wayne Henley Jr's social media profile has sparked outrage more than 40 years after he was found guilty of helping Dean Corll - The Candy Man - murder at least 28 teenage boys.

Possibly through the help of a pen pal, 59-year-old Henley posts bizarre musings on the page, and responds to gushing messages posted on his wall from loved-ones.

He also posts pictures of his own artwork and an eerie jewelry range, with links to a Texas-based website where they sell for hundreds of dollars.

It has drawn fury from victim support groups and law enforcement, who have launched an official review as they call on Facebook to remove the profile.

Controversy: This is a screengrab of Elmer Wayne Henley's Facebook page, which has sparked outrage

Henley was 17 when he was detained in 1973 (left) after years of mysterious disappearances of teenage boys across Houston, Texas. He helped Dean Corll, The Candy Man, (right) lure 28 boys to be tortured and killed

'From my perspective, since he silenced the voices of over 28 young boys: His voice through social media should also be silenced,' Andy Kahan, Houston's victims assistance officer, said.

'What it does is it continues to give him infamy and immortality, which he richly doesn’t deserve,' he told Daily Mail Online.

'It says he's a public figure. A public figure for what? For marching 28 teenage boys to their deaths? He knew they were going to be sexually tortured and murdered.

He silenced the voices of over 28 young boys: His voice through social media should also be silenced Andy Kahan, Houston's victims assistance officer

'It makes him feel relevant. It makes him self-important. And it just keeps his name and his ideology out there.'

One of Henley's posts reads: 'Hatred is corrosive. Whether it is hatred of things or others or even oneself. Hatred eats at your insides and rusts your soul. Turn from hatred and choose to see beauty and love.'

His profile features family photos and jovial profile pictures, including one which has a filter to make him look like Santa.

And his jewelry items include a necklace made up of a blood-stained dagger attached to a chain.

Henley was 17 when he was detained after years of mysterious disappearances of teenage boys across Houston.

He and his school friend David Brooks had spent two years colluding with an older man, Dean Corll - carrying out robberies for small payments, then eventually luring victims to their death.

Corll was nicknamed the 'Candy Man' because he gave young boys sweets from his family's business.

Between 1970 and 1973, Henley and Corll and Brooks abducted, raped, tortured, and murdered at least 28 young men.

Henley shot Corll dead in 1973. Brooks is still serving a life sentence.

Now locked up in the notoriously-tough Michael Unit in Anderson County, Texas, Henley has been denied every parole appeal since he first became eligible in 1980.

He is barred from using the internet in his cell.

Investigators suspect he is in communication with somebody over the phone or via letters, telling them what to post.

His profile displays the astounding amount of support Henley has garnered years on from his conviction.

His profile features family photos and jovial profile pictures, such as this one with family members

Henley even got to celebrate Christmas via the internet, by fashioning this Santa-themed profile photo

He posts photos of his eerie jewelry range, with links to a website where they sell for hundreds of dollars

In 1994, Henley was urged to start painting by an art dealer in Louisiana. The move sparked controversy when his work was exhibited and sold by a group that specializes in convicts' art. Now he promotes it on Facebook

The most frequent visitor to his page is a woman named Gayle who lives in New South Wales, Australia. Since early 2015, Gayle has posted regular messages, calling him 'sexy legs', 'sweetness', and 'my darling friend'

The most frequent visitor to his page is a woman named Gayle who lives in New South Wales, Australia, according to her profile.

Since early 2015, Gayle has posted regular messages, calling him 'sexy legs', 'sweetness', and 'my darling friend'.

In 1994, Henley was urged to start painting by an art dealer in Louisiana. The move sparked controversy when his work was exhibited and sold by a group that specializes in convicts' art.

Responding to news of the profile, Jason Clark, a spokesman for the prison system, told KHOU: 'We’ve reached out to Facebook and told them that this is against their policies. Someone started it under his name.'