Kris Jenner’s Mom Mary Jo ‘MJ’ Shannon’s Cause of Death Revealed: Report

Yamillah HurtadoTue, July 28, 2026 at 5:00 PM UTC

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The cause of death for MJ Shannon has been released

Her immediate cause of death is reportedly listed as acute cardiopulmonary arrest

MJ died on Thursday, July 16, at the age of 91, Kris Jenner previously announced

Kris Jenner’s mom Mary Jo “MJ” Shannon’s official cause of death has been determined.

MJ died on July 16, at age 91. According to her death certificate, obtained by Us Weeklyon Tuesday, July 28, her immediate cause of death was acute cardiopulmonary arrest.

MJ and Kris JennerCredit: Kris Jenner/Instagram

The record also lists acute respiratory failure and metastatic lung cancer as other conditions that led to her death, the outlet reported, and MJ was cremated on July 23, with no autopsy performed.

MJ Shannon on ‘Celebrity Family Feud’Credit: Byron Cohen via Getty

Kris, 70, announced MJ’s death in an Instagram post on July 16.

“Today, we said goodbye to my beautiful Mommy MJ,” she wrote. “There are no words that could ever capture what she has meant to me or the heartbreak of having to say goodbye. My mom was the heart of our family. She taught me everything that truly matters … to love your family fiercely, to be kind, to show up for the people you love, and to never take a single moment together for granted.”

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“She taught us that family is everything. She showed us how to love unconditionally and how to find joy in the little moments,” continued Kris. “She showed me how to face life’s challenges with resilience and faith. Mom, thank you for every sacrifice you made, every piece of wisdom you shared, and every moment you loved us so completely. I will miss our daily talks, your smile, your laughter… Our hearts are broken, but we find comfort knowing that love like yours never truly leaves us. Your love will live on in our family, in our traditions, in every moment we are together, and in every life you touched.”

“When I look at my kids and my grandkids, I will forever see pieces of you in all of us. There is not a part of me that isn’t shaped by you,” she added.

“And if I have done anything right in this world, it’s because I spent my life trying to live in a way that would make you proud. 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. My heart is broken into a million pieces… thank you for giving me the greatest childhood and oh what a beautiful blessed life… I love you forever Mommy. Thank you for giving us everything.”

MJ, who made regular appearances on the famous family’s reality show Keeping Up with the Kardashians over the years, founded San Diego children’s boutique Shannon & Co. in 1980.

Kris marked what would have been MJ’s 92nd birthday on July 26. “Happy Heavenly Birthday Mommy. I love you,” she wrote on Instagram.

on People

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Source: “AOL Entertainment”