Son of 'Real Housewives' Star Mary Cosby Dies at 23

Robert Cosby Jr. passed away after a reported drug overdose, according to police.

Feb. 25, 2026 at 9:57pm

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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 confirmed her son's death on Wednesday, stating that 'our beloved son Robert Jr. has been called home to the Lord.' Officials with the Salt Lake City Police Department said they found Robert Cosby Jr. deceased after responding to a call concerning a possible drug overdose.

Why it matters

The death of a child is always a tragic event, and the loss of Robert Cosby Jr. will undoubtedly be deeply felt by his family, friends, and the 'Real Housewives' community. The reported drug overdose also highlights the ongoing challenges of substance abuse, especially among young people.

The details

Mary Cosby did not disclose a cause of death, but police said they responded to a call about a possible drug overdose. Robert Cosby Jr. had previously appeared on 'RHOSLC' and had issues with drugs, including a prior arrest for violating a restraining order against his ex-wife.

  • On Wednesday, February 25, 2026, Mary Cosby confirmed her son's death.

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, reportedly due to a drug overdose.

Andy Cohen

An executive producer of 'The Real Housewives' franchise who expressed condolences for Mary Cosby and her family.

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What they’re saying

“Though our hearts ache, we take comfort in God's promise and in knowing he is finally at peace.”

— Mary Cosby, Reality TV Star

“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

The takeaway

The tragic death of Robert Cosby Jr. serves as a somber reminder of the ongoing struggles with substance abuse, especially among young people. This loss will undoubtedly have a profound impact on his family, friends, and the broader 'Real Housewives' community.