Marina has admitted to dismembering Andy’s body – but claimed he died of a drug overdose and denies murdering him.
She claims she chopped up the 30-year-old’s remains so his fans would never know he had died such an “inglorious” death – and planned to report him as a missing person.
The 37-year-old remains the only suspect in the case and is currently under house arrest pending investigation.
His death came after she discovered he was having an affair with a 26-year-old fan.
Despite law enforcement’s efforts however, there was no evidence that she killed him.
But new forensic evidence suggests that Andy was still alive when he was dismembered and that he died from oxygen starvation, reports Russian media.
The bizarre case had been labelled in the press the “perfect murder” due to the lack of evidence and mysterious circumstances surrounding his death.
Sources told Russian media that Andy – real name Alexander Yushko – was in a state of “pronounced hypoxia” before he died.
Many of his organs were disposed of by Kokhal but the latest scientific evidence indicates the dismembering “occurred shortly – a few minutes, dozens of minutes – before death”.
Earlier, investigators had believed he died from an injection of a hard-to-trace insulin substitute drug intended for diabetics.
After she was held, Kokhal’s lawyers told how she was initially accused by detectives of “drinking her dead husband’s blood and having sex with his corpse”.
Some body parts were located in her fridge, others in bin liners intended for disposal, while his fingertips were fed to rats in the yard outside, it is alleged.
Forensic experts say eight key organs were unavailable to them, namely his stomach, pancreas, oesophagus, gall and urinary bladders, intestines, adrenal glands, and prostate gland.
They were either missing or had been put through a washing machine, it was reported.
According to Komsomolskaya Pravda, “not a drop of blood” was found in his remaining body parts – yet he had a critically low level of glucose perhaps due to “drug administration”.
Marina and Andy’s child has been sent to an orphanage while the investigation continues – with the case due to return to court this month.
Defence lawyers earlier claimed that Kokhal was quizzed on “disgusting” and “sick” claims.
They said she was asked: “Did you taste his blood?”
And it was alleged she “had sex with the corpse”.
Her defence claimed this questioning amounted to illegal coercion to testify by use of threats which allegedly included taunts that investigators would find a “good orphanage” for her infant son when she was jailed.