Katherine Jackson isn't done fighting over her son's death.
The Jackson matriarch has appealed the U.K. jury's verdict in the Michael Jackson wrongful death trial against AEG Live. The concert promoter was found not to be liable for MJ's drug overdose death. Katherine and Michael's three children sued for more than $40 billion.
As TMZ points out, it will be "very difficult and even borderline impossible" to overturn the jury verdict in the civil case.