Mary Jo Campbell's cause of death has been revealed, nearly two weeks after the mother of Kris Jenner died at 91. The beloved Kardashian family member died from acute cardiopulmonary arrest, per a death certificate obtained by US Weekly. The show starred her daughter and her grandchildren, Kim Kardashian, Khloe Kardashian, Kourtney Kardashian, Rob Kardashian, Kendall Jenner and Kylie Jenner. 'Every memory, every moment, every blessing, it was all because of you, and I will forever thank God every single day for making you my mommy. It is a love life that bears a striking similarity to her granddaughter Kim, who has also been married three times.