Questions surround death of Christopher Kelly, ex-adviser to Rod Blagojevich

The Chicago Tribune reports:

A day after Christopher Kelly died in Chicago, a host of questions remained Sunday about the final hours of former Gov. Rod Blagojevich's onetime top adviser, who was about to start serving a prison term.

Police said Sunday that they didn't yet know whether Kelly, 51, tried to kill himself by ingesting the drugs found inside the 2007 Cadillac Escalade registered to his roofing company. But a girlfriend told police that Kelly said he wanted to commit suicide in text messages he sent to her.

After an autopsy, the Cook County medical examiner's office said more studies are needed before determining a cause of death.

Plus, there's a person whom police called a "mystery man" with gray hair who unsuccessfully tried to pick up Kelly's SUV from the hospital with keys in hand -- whom police are still trying to identify.