Kris Jenner's Mom Mary Jo 'MJ' Shannon Died After Suffering Respiratory Failure Amid Secret Lung Cancer Battle, Death Certificate Reveals

The death certificate of Kris Jenner's mother, Mary Jo 'MJ' Shannon, confirms she passed away on July 16 at age 91. The immediate cause of death was acute cardiopulmonary arrest. Contributing factors included acute respiratory failure and metastatic lung cancer, a condition she had battled for several months prior to her passing. These details were obtained by Us Weekly and reported following the 91-year-old's death, clarifying the medical circumstances surrounding the loss of the family matriarch.