Sri Lanka News First Latest War News Sri Lanka News Papers Hot News Breaking News Sinhala Tamil News online internet: Jackson post-mortem may take weeks Jackson post-mortem may take weeks ================================================================================ Colombo News Desk CND on 27 June, 2009 12:52:00 However, if a cause of death can be determined by the autopsy, the results will be announced, Mr McKibben said. Police said they were investigating the death, standard procedure in high-profile cases. Officers are searching for a doctor who they hope will help in the investigation. A Los Angeles police spokeswoman said they towed from Jackson's house a BMW owned by one of the superstar's doctors. "We have not been able to interview the doctor yet. His car was impounded because it may contain medications or other evidence that may assist the coroner in determining the cause of death," she said. Celebrity gossip web site TMZ.com reported that the doctor lived at the home. The spokeswoman said she could not confirm that and did not know the doctor's identity. She stressed that the doctor was not under criminal investigation but coroner's investigators wanted to contact him. Jackson's brother Jermaine earlier said: "It is believed he suffered cardiac arrest in his home. However, the cause of his death is unknown until results of the autopsy are known." Cardiac arrest is an abnormal heart rhythm that stops the heart from pumping blood to the body. It can occur after a heart attack or be caused by other heart problems.