‘Keeping Up With the Kardashians’ Star’s Cause of Death Revealed

Kris Jenner / Instagram Kris Jenner’s mother, Mary Jo “MJ” Campbell, died at 91 of acute cardiopulmonary arrest. Her death certificate revealed she was also battling acute respiratory failure and metastatic lung cancer leading up to her death. Jenner announced her mother’s death on July 16 in a heartfelt Instagram post, calling MJ “the heart of our family” and thanking her for a lifetime of love and support. The matriarch was cremated on July 23. “There are no words that could ever capture what…