British police are investigating the possibility that heiress Eva Rausing may have died of a drug overdose up to a week before her body was found by police.
She was discovered dead Tuesday at her multimillion dollar London home.
Eva's husband, UK billionaire Hans Kristian Rausing, 49, is still being treated in hospital today after being arrested on Tuesday when detectives discovered the body of Eva, 48, during a bedroom search of the couple’s home.
He had been stopped for driving erratically earlier in the day and found to have drugs on his person. He is being investigated in her death.
As part of the investigation into what detectives are describing as Eva's “unexplained” death, they are examining how long she might have lain dead and why.
A postmortem Tuesday proved inconclusive and further tests are being carried out to establish the cause of death, which could've taken place up to a week ago.
Police from the London Metropolitan police’s homicide and serious crime command unit have yet to interview Rausing, who remains under arrest but had been transferred to the hospital for treatment, with police officers present.
Eva and Hans were both friends of Prince Charles. She was a trustee of and major donor to his pet architecture charity, The Prince's Foundation for Building Community, and was a co-patron of Action on Addiction with Kate Middleton.