Investigations into George Michael’s death are continuing to speculate the world, and now that no results have come back suspicious after his first autopsy, fans still aren’t satisfied.

“A post mortem examination was carried out yesterday as part of the investigation into the death of George Michael,” a statement by the Thames Valley Police Report said. “The cause of death is inconclusive and further tests will now be carried out. The results of these tests are unlikely to be known for several weeks. Thames Valley Police will prepare a file for the Oxfordshire Coroner. Mr. Michael’s death is still being treated as unexplained but not suspicious.”

The singer was found dead on Christmas Day at 53, which was described as “peaceful” in his sleep. His rep had previously said it was due to heart failure.