In an interview with The Times of London, Jackson's nanny for a decade, Grace Rwaramba, said she had to pump the singer's stomach many times because he had taken too many pills and that he took up a combination of several different painkillers.
Jackson could leave a financial and legal conflict in his wake.
Even though he reportedly had a debt of $400 million and continued splurging sprees despite his dismal financial situation, Jackson's albums are flying off the shelves now and his songs are back in the top charts after his death. Some say like Elvis Presley, Jackson's could become worth more in death than life.
Revenue from Jackson's songs is expected to triple this year because of his death. In the last three days, a Las Vegas auction of Jackson memorabilia -- including a crystal-studded shirt -- has found new life. The auction -- done on Jackson's behalf -- was expected to fetch only $6,000 initially, but it pulled in more than $200,000 after his death.
On Sunday, Jackson's greatest hits album "Number Ones" album topped the UK album chart.
Questions are also swirling about whether Deborah Rowe, Jackson's ex-wife and the mother of his two oldest children, will seek custody. Rowe has not been a part of the children's lives; Jackson had full custody.
Rowe's attorney said in a statement Saturday that her "only thoughts at this time have been regarding the devastating loss Michael's family has suffered. Ms. Rowe requests that Michael's family, and particularly the children, be spared such harmful, sensationalist speculation and that they be able to say goodbye to their loved one in peace."
Cole said the main question is about the third child, who was born by a surrogate mother whose name has never been revealed.
"You really don't want to break up a family. So she's really coming out and saying, 'I want to reclaim my two children,'" Cole said. "I don't think a judge is going to want to split up that family so that's another huge question that's going to take some time to resolve."
In a statement released late Saturday, the Los Angeles Police Department said Dr. Conrad Robert Murray "voluntarily contacted" the department.
"During the meeting Dr. Murray helped identify the circumstances around the death of the pop icon and clarified some inconsistencies," the statement said. "Dr. Murray has been in Los Angeles since the death of Mr. Jackson. He rode in the ambulance to the hospital and stayed at the hospital for hours comforting and consoling the Jackson family."
Murray's spokeswoman, Miranda Sevcik, said in a statement that he "helped identify the circumstances around the death of the pop icon and clarified some inconsistencies," and that the doctor is in no way a suspect. The statement added that Murray has been in Lose Angeles since Jackson's death and plans to stay there until his cooperation is no longer needed.
Murray, a cardiologist, had tried to "pump" Jackson, according to the 911 call, but did not sign a death certificate.
"Dr. Murray's grieving for the loss of Mr. Jackson, as millions of people around the world are," said Matt Alford, a partner at the law firm hired by Murray, Stradley, Chernoff & Alford. "But he was not only Mr. Jackson's physician, he was also his friend and he's grieving for Mr. Jackson right now but he's holding up well."