"I'm not angry. I'm mad," Joe Jackson said on Today. "I didn't know all this was going on. That's what I'm mad about." Joe Jackson said of Friday's announcement "tells me there was foul play done. That's what it tells me. And more to be investigated to see what is behind all of this stuff, not just Dr. Conrad Murray."

But Joe doesn't stop at the doctor who administered the deadly dose to his son. "Someone should pay. Not just someone but all of them should pay that's involved," Jackson said.