Michael Jackson's father alleged Friday that "foul play" led to his son's death.
Joe Jackson's comments to ABC News came amid growing indications that the criminal abuse of prescription drugs killed Jackson, and as celebrity website tmz.com reported that at least two of Jackson's doctors were not cooperating with the coroner's request for the pop icon's medical records.
Los Angeles police chief William Bratton said Thursday the case could be probed as a criminal one, and not a death investigation. "We are still awaiting corroboration from the coroner's office as to cause of death. That is going to be very dependent on the toxicology reports that are due to come back," Bratton told broadcaster CNN.
"And based on those, we will have an idea of what it is we are dealing with: Are we dealing with a homicide or are we dealing with accidental overdose?"
Jackson's father backed up those assertions: "I do believe it was foul play."
The Jackson family is still waiting for the results of the pop star's official autopsy and the independent autopsy.