Sly of the Underworld had some strong comments to make on mass murderer Julian Knight, who has been moved from maximum security prison after 38 years to Castlemaine’s Loddon Prison.

The crime writer stated Knight, who killed seven people in the 1987 Hoddle Street massacre, monitors his segment on 3AW Breakfast.

“I’m not doing life in prison, and I’m not a coward, a killer and a rat,” Sly said about Knight.

Press PLAY to hear his strong comments and claims about the mass murderer

“The man is so desperate to be seen as intelligent.”

Images: 3AW, Nine