The brother of accused cop killer Dezi Freeman believes he is dead, according to a pro-Vladimir Putin propagandist hiding in the Russian consulate in Sydney.

Simeon Boikov, known online as Aussie Cossack, posted a video to YouTube saying that Freemaman’s brother James Filby had contacted him.

Boikov claimed Filby believed Freeman died somewhere in Mount Buffalo National Park, in the state of Victoria.

“What Dez did was wrong, but he’s my brother and I miss him. I hope he has peace now. I imagine his last hours on this earth were cold, lonely, fearful and sad for his family,” the message, which appeared at the bottom of the video, read, according to Boikov.

“I know he’d want to be buried on Mount Buffalo and never be found by police.”

The controversial YouTube host claimed in the video that Filby said Freeman has been a fan of his.

“Dezi Freeman was a subscriber, and he used to love watching the Aussie Cossack channel,” Boikov said.

“Although I’ve never personally spoken to Dezi Freeman, I can see why he was a subscriber.”

Australian Pro-Putin propagandist Simeon Boikov has been hiding from police in the Russian consulate in Sydney since December 2022. Photo / Aussie Cossack

Boikov has been hiding from Australian authorities in the consulate since December 2022, the ABC reported.

He fled to the consulate to avoid arrest after assaulting a pro-Ukraine protester in central Sydney, according to the outlet.

He was convicted in absentia.

Freeman has not been seen since late August, when he allegedly shot dead two police officers and injured a third.

The confrontation occurred when officers executed a search warrant at his property in rural Victoria.

He then fled into the bush with firearms and has since been on the run, News.com.au reported.

Police have placed a A$1 million ($1.1m) reward for information leading to his arrest.