Michael Jackson's grieving father said he suspects "foul play" in the 50-year-old King of Pop's untimely death two weeks ago.
"I do believe it was foul play," Joe Jackson told ABC News Friday. "I do believe that. Yes."
The 79-year-old family patriarch said he wanted to know why his son died so suddenly, but added that a second autopsy commissioned by the Jackson family has yet to reveal any answers.
Jackson did not elaborate on why he suspected foul play.
"I just couldn't believe what was happening to Michael" as he was being rushed to the hospital after collapsing on June 25, Jackson told ABC News' Chris Connelly.
Los Angeles police are waiting for the coroner's report, which hinges on crucial toxicology tests.
Detectives were looking at the singer's history of prescription drug use and trying to question his former doctors.
"Based on those we'll have an idea of what we're dealing with," Los Angeles Police Chief William Bratton said. "Are we dealing with homicide? Are we dealing with an accidental overdose? What are we dealing with?"
Jackson said he didn't know anything about the drugs his son used.
"I don't even know the name of them," he said. "I do know that whatever he was taking was to make him rest because he had been working so hard."
An attorney for Michael Jackson's dermatologist, Dr. Arnold Klein, told the Los Angeles Times that subpoenaed medical records had been turned over to the Los Angeles County coroner's office.
After the singer's death, Cherilyn Lee, a registered nurse who had worked for him, told The Associated Press she repeatedly rejected his demands for the potent anesthetic Diprivan, also known as Propofol.
The Drug Enforcement Administration and the state attorney general's office, which keeps a database of prescription drugs, are assisting investigators.
Meanwhile, the elder Jackson - who was to attend another memorial service in the singer's hometown of Gary, Ind., Friday - told ABC that he and his wife, Katherine, should have custody of the superstar's three children.
"There's no one else to do what we can do for them," he said. "We should keep them all together and then make them happy, feed 'em like they're supposed to be fed, and let them get rest, plenty of sleep and grow up to be strong Jacksons."
He said Michael's daughter, Paris, 11, whose emotional words at the Stapels Center memorial service on Tuesday, brought tears to fans across the world, is taking the death hard.
"When you start talking about Michael she starts crying," he said.
Jackson said he hoped Paris might have a future in the entertainment business along with the youngest son, Prince Michael II, 7, nicknamed Blanket, who "can really dance."
The children have been under the care of their grandmother, Katherine Jackson who is gearing up for a custody battle.
Joe Jackson was left out of their son's will, which designated his wife as the first-choice legal guardian. The two are still married but reportedly living separately.
A hearing on the custody of the children has been scheduled for Monday.
I believe that an in depth investigation should be conducted to determine the actual death of the king of pop