A Melbourne comic has revealed he is the person charged with defacing a makeshift memorial to slain comedian Eurydice Dixon.

Andy Nolch, 31, made the admission on his Facebook page overnight on Thursday, saying he did it “because I was upset that vaccines caused the killers (sic) autism”.

“I’ve been charged by the cops,” he wrote. “Sometimes you have to do wild things to raise awareness”.

Mr Nolch was attacked on Facebook by other social media users after the charges were laid.

Paint was used to deface a Carlton North sports field where Ms Dixon was found raped and murdered on June 13.

Mr Nolch describes himself as a blogger “exposing the kinky truth”.

“Find out about government corruption, aliens, conspiracy theories, spirituality and much much more,” he says in his Facebook description.

Comedian Eurydice Dixon died in a Melbourne park on June 12. Photo: Facebook

Arts community network ArtsHub reports that multiple sources said Mr Nolch previously presented himself as transgender for several months before telling those colleagues who had supported him that it was a joke and that he believed gender transition was wrong.

More recently his YouTube channel has focused on “Indie Scientology” and conspiracy theories about UFOs, chemtrails and other subjects, ArtsHub said.

Police said they arrested a 31-year-old Bulleen man on Thursday last week over the offensive markings painted around the memorial.

They were discovered on June 18, the morning of a planned vigil, painted on the soccer pitch where mourners had placed flowers and tributes in honour of the dead 22-year-old.

Fire crews used high-pressure hoses to remove the paint and the public vigil went ahead, with thousands turning out to pay their respects to the aspiring comedian.

At the time, police vowed to catch those responsible.

Mr Nolch is charged with criminal damage, offensive behaviour and offensive graffiti. He has been bailed to face court on August 10.

Ms Dixon was killed on her way home from a comedy show at the Highlander Bar in the CBD on June 12.

A 19-year-old man has been charged with her rape and murder.

-AAP