Jackson's death: Questions remain unanswered

Foul play has been ruled out after a preliminary autopsy of Michael Jackson's body but several questions remain unanswered on the cause of his sudden collapse and death on Thursday.
 
"There was no indication of any external trauma or indication of foul play on the body of Jackson," Coroner's spokesperson Craig Harveye said after the autopsy.

The 50-year-old 'King of Pop' collapsed early Thursday at his rented Holmby Hills home in Beverly Hills. The pop star was rushed to the to UCLA Medical Center by paramedics where he was pronounced dead after attempts to revive him failed.

"We anticipate being able to close the case and issuing a final cause of death after those tests are completed in four to six weeks," Harveye said.

"We know he was taking some prescription medications," Harvey was quoted as saying by Los Angeles Times. However, he did not elaborate.

Meanwhile, many conspiracy theories have come up as to what led to Jackson's sudden death. People close to Jackson have already claimed the role of "enablers", who encouraged his dependency on prescription drugs.

"I do not know what medications he was taking, but the reports that we have received within the family are that they were extensive. I do not know the cause of it. But it is something that I feared. This is a case of abuse of medications, unless the cause is something else," Brian Oxman, Jackson's attorney and spokesman had said.
       
Reports suggest the singer was working hard for his much-hyped 'This Is It' comeback concerts in London and he was taking prescription drugs to get into shape for the 50-date concert tours from July 13.
       
"He was injected three times a day with Demerol, the potent painkiller given to him before his collapse at home in Los Angeles on Thursday," British newspaper Sun said citing sources.
       
Reports in British media also suggest that the singer was worried about his mounting debt and was "terrified" about his comeback tour stating that "If I don't do it, they will kill me."
 
"He kept saying that he had to do the concerts because he owed too much money," a source close to the star said.
    
"His friends say he signed his death warrant when he put pen to paper for the O2 shows. He wasn't up to it physically or mentally," the source added.

Wall Street Journal quoting unnamed sources said Jackson had a debt of USD 500 million.
 
Though, the exact circumstances of singer's death remains unclear, the identity of the doctor, who reportedly administered CPR (Cardiopulmonary Resuscitation) has been revealed.

Dr Conrad Murray who is licensed in Texas, Nevada and California, is said to have administered CPR to Jackson on Thursday before the paramedics team arrived at his home. Murray also accompanied the singer to the hospital.
       
Mystery surrounds the identity of the person, who called 911 (US emergency number) after the singer collapsed.
 
"He's not responding to CPR. He's (personal doctor) pumping his chest, but he's not responding to anything," the caller had said, according to the transcript released by Los Angeles Fire Department.
 
The doctor's vehicle has been impounded by the police with deputy chief Charlie Beck saying that this was aimed at ascertaining whether there was any evidence relating to Jackson's death.
 
However, Beck declined to say whether detectives found medication in the car.
        
Murray was interviewed by police officials, who plan to quiz him again.
      
"Nothing suggests criminality at this point," Beck said about the investigation.
       
Tohme Tohme, Jackson's former manager said in an interview that AEG Live, the Los Angeles-based concert promoter behind Jackson's shows, had hired Murray.