THIS is the chilling moment an alleged paedophile cannibal demonstrates to detectives how he stabbed his victim.

Arkady Zverev, 22, has been charged with murdering his landlord before cooking body parts cut from his victim Alexander Popovich, 21.

Zverev was with a 12 year old schoolgirl during the alleged killing and confessed to police that he had sex with her, law enforcement officials have said.

Earlier he had taken her by car some 1,500 miles from the Black Sea resort of Sochi to St Petersburg without her parents’ permission, it was reported.

Zverev was brought to the murder scene and demonstrated on a mannequin how he stabbed the victim.

A video was released by the Investigative Committee, in charge of probing serious crime in Russia.

Gruesome reports have emerged citing law enforcement officials of how Zvarev confessed that an axe was used to dismember the corpse.

Popovich’s heart, brain and one eye were cooked and eaten, it is alleged.

He confessed to putting the severed head of Popovich, in a microwave and turning it on the highest setting for three minutes.

He was “curious about the taste” of brains after a previous girlfriend died falling out of a window and cracking her head open, he told a judge in a closed session hearing, according to Russian media reports.

The IC said that Zvarev has been charged with murder, and remanded in custody for two months.

Investigations are underway based on his alleged confessions and more charges are expected relating to abusing the dead body and sex with a minor.

Russia does not have a specific crime of cannibalism.

The girl has been detained for one month and is undergoing psychiatric assessment ordered by a court.

She is under the age of criminal responsibility and cannot face any charges.

She is described as a “witness” in the case.

Investigators are “establishing all the circumstances of the murder committed”.

They are also probing leaks from the investigation, which could lead to action against those responsible.