Katherine Jackson arrives at the world premiere of "Michael Jackson ONE by Cirque du Soleil" at THEhotel at Mandalay Bay on June 29, 2013 in Las Vegas

Katherine Jackson arrives at the world premiere of “Michael Jackson ONE by Cirque du Soleil” at THEhotel at Mandalay Bay on June 29, 2013 in Las Vegas

*Michael Jackson’s mother has appealed the verdict of her $40 billion wrongful death lawsuit against AEG Live, reports TMZ.

Katherine Jackson filed new court documents in Los Angeles this morning attempting to overturn the jury’s decision that the concert promoter was not responsible for Michael’s death in 2009, nor wrong for hiring Dr. Conrad Murray to be the late singer’s medical practitioner.

The 83-year-old matriarch was reportedly still hopeful after hearing comments made by the jury following the five-month trial last month, and her lawyer Brian Panish confirmed they were gathering information for an appeal.

The jury decided on October 2 that AEG Live, the promoter of Michael’s “This Is It” comeback concerts, hired Murray, who was convicted of involuntary manslaughter in November 2011, but were not liable for the physician’s actions that led to the King of Pop’s death because he was neither ”unfit” nor ”incompetent” when they hired him.

Michael’s niece Tanay Jackson – the daughter of Michael’s brother Tito – recently revealed that his children, Prince, 15, Paris, 15, and 11-year-old Blanket, would never forgive Murray, who was released from jail in October after serving less than two years of a four-year sentence for involuntary manslaughter.

She said: “I think a murderer should get a longer sentence than that, I don’t think it’s fair. We really feel like there were more people involved in my uncle’s death. But Conrad Murray is the physical culprit because he physically injected him.”

She added: “No, we haven’t forgiven him. We can’t forgive him at all.”