Sydney CBD murderer Mert Ney continues to cause chaos in Goulburn Supermax

The list of charges on a notorious Sydney murderer’s rap sheet is piling up despite the monster, who is in the early years of a decades-long sentence, being locked inside one of Australia’s most secure prisons.

A callous killer destined to spend decades behind bars for murdering a sex worker during a bloody rampage in Sydney is facing multiple charges connected to his alleged uncontrollable conduct inside one of Australia’s toughest prisons.

Mert Ney faced Wollongong Local Court on Tuesday, after The Sunday Telegraph revealed in December that the 26 year-old had been labelled the “problem child” of Goulburn Supermax for more than two dozen incidents involving prison officers or inmates inside the High Risk Management Correctional Centre wing.

Ney has three sets of charges currently before NSW courts, with one set over allegations he broke a light switch, powerpoint and five perspex sheets between July and August 2024, according to court documents.

He pleaded not guilty to destroying property in Wollongong court, with the charge now set to be the subject of a hearing in July.

Mert Ney murdered Michaela Dunn in a Sydney CBD apartment before being arrested in the streets. Picture: David Vau

Ney has also pleaded not guilty at Goulburn Local Court in January to assaulting a law enforcement officer, being armed with the intent to commit an indictable offence and possessing a weapon in jail.

The third matter, which will be before Goulburn Local Court in March, relates to a charge of assaulting a law officer at some point in 2025.

Michaela Dunn was 24.

Mert Ney was sentenced to a maximum of 44-years behind bars. Picture: NCA NewsWire/Joel Carrett

Ney is in the fledgling years of a 44-year jail term for taking the life of Michaela Dunn in August, 2019, after stabbing her to death in a Sydney CBD apartment before knifing another woman in the street.

Ney fled the apartment and ran through the streets with a knife before stabbing another woman.

The rampage came to an end when brave good Samaritans held him down with a chair and a milk crate.

Supreme Court Justice Peter Johnson described Ney’s actions as a “cruel, brutal and terrifying attack made for no reason”.

In May 2021, Ney was sentenced to a non-parole period of 36 years which was later reduced to 33 in the Court of Criminal Appeal.

But just five months later, he was convicted of his first offence behind bars, sentenced to an extra 15 months’ jail for assaulting a corrections officer.

Mert Ney will face hearings at the local courts in Wollongong and Goulburn. Picture: 7News

He was also convicted and sentenced to 12 months for setting his cell on fire.

In February, 2023, Ney was sentenced to 15 months jail for throwing boiling water on a fellow inmate.