Michael Jackson’s mother, Katherine, has filed a lawsuit against concert promoters AEG Live in connection with the singer’s death last year, according to the Associated Press. The complaint filed in Los Angeles Superior Court accuses AEG of failing to meet its obligations to adequately safeguard Jackson’s health as he prepared for a planned series of comeback concerts and claims that the company is liable for the actions of Jackson’s doctor, Conrad Murray, who has pleaded not guilty to involuntary manslaughter in Jackson’s death. “On this day my family has filed a wrongful death lawsuit against AEG,” Jackson’s brother Randy wrote on his Twitter account. “I am proud of my family.” The suit, which was also filed on behalf of Jackson’s three children, is seeking unspecified damages.