Mary Cosby's Son Robert Cosby Jr. Dies at 23

The Real Housewives of Salt Lake City star mourns the loss of her son.

Published on Feb. 26, 2026

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Robert Cosby Jr., the 23-year-old son of The Real Housewives of Salt Lake City star Mary Cosby, has passed away. Mary Cosby shared the news on social media, saying their 'beloved son Robert Jr. has been called home to the Lord' and that while their 'hearts ache,' they 'take comfort in God's promise and in knowing he is finally at peace.' The Salt Lake City Police Department confirmed Cosby Jr.'s death, stating they responded to a call for an overdose on Monday, though they did not share a cause of death.

Why it matters

The death of a child is always a tragic event, and Mary Cosby's public mourning of her son's passing will likely resonate with her fans and followers. As a cast member of the popular Real Housewives franchise, Cosby's personal life has been in the spotlight, and this loss will undoubtedly impact her moving forward both personally and professionally.

The details

According to the report, police responded to a call for an overdose on Monday at an address associated with someone matching Cosby Jr.'s name and age in Salt Lake City, which turned into a death investigation. The police did not share the official cause of death.

  • On Monday, police responded to a call for an overdose at an address associated with someone matching Cosby Jr.'s name and age.
  • On Wednesday, Mary Cosby shared the news of her son's death on social media.

The players

Mary Cosby

A cast member of The Real Housewives of Salt Lake City and the mother of Robert Cosby Jr.

Robert Cosby Jr.

The 23-year-old son of Mary Cosby who passed away.

Salt Lake City Police Department

The law enforcement agency that confirmed Cosby Jr.'s death and responded to the initial overdose call.

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What they’re saying

“Our beloved son Robert Jr. has been called home to the Lord. Though our hearts ache, we take comfort in God's promise and in knowing he is finally at peace.”

— Mary Cosby (Instagram)

“Devastatingly sad news out of SLC. This is every parent's worst nightmare. My heart is broken for Mary, and I am sending all my love to her and Robert Sr.”

— Andy Cohen, Bravo Host (Twitter)

The takeaway

The tragic loss of Mary Cosby's son at just 23 years old is a heartbreaking reminder of the fragility of life and the immense pain parents can experience when they lose a child. While the details surrounding his death remain unclear, Cosby's public mourning will likely resonate with her fans and the broader community, highlighting the importance of empathy and support during times of profound grief.