But with final autopsy reports likely to take up to six weeks – and family patriarch Joe Jackson telling PEOPLE, "The truth is still to be told" – the investigation into the pop star's sudden death has focused on Dr. Conrad Murray, a financially strapped Vegas physician who was at Jackson's side when the 50-year-old went into cardiac arrest Thursday, the Los Angeles Times reports.
On Friday, detectives said they wish to meet and discuss the case with Murray – having stated that the cardiologist was not the target of a criminal investigation. Earlier, authorities reportedly seized Murray's BMW sedan from the driveway of Jackson's rented mansion in Holmby Hills, Calif.
"It may contain medications or other evidence that may assist the coroner in determining the cause of death," said an LAPD spokeswoman.
At Jackson's SideThe doctor was administering CPR on Jackson at the time paramedics responded to a 911 call for help. Murray also accompanied the ambulance to the University of California, Los Angeles, Medical Center, where Jackson was pronounced dead at 2:26 p.m.
"We know [Jackson] was taking some prescription medication," said Craig Harvey, a spokesman for the Los Angeles County Coroner's Office. He said that the autopsy revealed no signs of foul play. The probe is also focusing on what drugs the pop star did use.
Murray, 51, is reported to be licensed in California, Nevada and Texas, with an office in Houston, and had treated Jackson for three years. The star reportedly requested two weeks ago that Murray be with him.
"Michael told me personally that he trusted this man," said Randy Phillips, CEO of AEG Live, the concert group producing Jackson's scheduled London shows.
Closed His PracticeOn June 15, TMZ reports, Murray shut his private practice and dispatched a letter to his patients, saying he was indefinitely closing down his office.
"I am deeply saddened to leave you at this point, but please know my absence is not permanent," his letter states. "In my absence, I will continue to manage the practice, and be involved as much as possible but from a distance. " He also says, "My absence is not permanent."
Murray, who has not responded to several requests for comment by the press, was beset with money problems, according to the Times, and last year was dealt hundreds of thousands of dollars in legal judgments against him.