​Michael Jackson Mom Testy: Katherine Jackson Gets Testy During Questioning​​

By: | 07/23/2013 12:48 PM ET

Michael Jackson’s mom appeared tearful at times and testy as she took the witness stand. Katherine Jackson believes her son bore no responsibility in his 2009 overdose death.

She said her son’s personal physician, Dr. Conrad Murray — who was convicted of involuntary manslaughter and imprisoned for supplying the singer with a surgery-strength anesthetic — was partially to blame. But the music family matriarch said concert promoter AEG Live callously watched Michael “waste away” in the days before his death and neglected to seek outside help for him — or tell her what was happening.

“They could have called me. He was asking for his father. My grandson told me that (Michael) was scared; he was asking for Joseph,” she said through tears, referring to her husband Joe Jackson.

“(AEG executives) watched him waste away, from what I can hear,” she said.

The emotional testimony came after Katherine Jackson, who is suing to hold AEG financially liable for her son’s death, said she didn’t believe her son abused drugs and that she never saw him appear “loopy.”

She later admitted that she “didn’t know what to believe” when confronted with a clip from a 2010 Oprah interview in which she told the talk show queen that she wasn’t buying her son’s claims he was completely clean.

Katherine Jackson lost her cool when a lawyer for AEG asked about her one and only conversation with her son about his drug use.

“I’m not answering that question,” she shot back at one point before accusing the lawyer, Marvin Putnam, of intentionally trying to trip her up.

“You’re just getting me confused so you’ll have something to come back on,” the 83-year-old said sternly.

Putnam, whose client is being asked to cough up more than $1 billion for the iconic musician’s death, reminded her it was his job to ask questions because she wants a mountain of money.

Katherine Jackson contends that AEG, the firm behind the singer’s ill-fated comeback tour, negligently hired Murray, who is now serving four years for overdosing her son.

AEG denies any wrongdoing in the case, saying it was Michael who personally hired Murray and begged him to administer the anesthetic propofol as a sleep aid.

Katherine said she was surprised when she first learned Michael specifically asked Murray for propofol. Still, she said she didn’t blame her son.