Robert Cosby Jr. Dies at 23, Mary Cosby’s Son Shrouded in Grief

TL;DR Summary
Robert Cosby Jr., 23, the son of Real Housewives of Salt Lake City star Mary Cosby, was found dead in Utah on February 23; authorities have not released a cause, with initial reports indicating a possible overdose. Mary Cosby confirmed the death in a heartfelt statement, noting his struggles with addiction and past legal issues, including a 2025 arrest and her filming of RHOSLC’s reunion while he was in jail; their divorce reportedly was finalized in February 2026.
- ‘RHOSLC’ Star Mary Cosby’s Son, Robert Cosby Jr., Found Dead Vulture
- Robert Cosby Jr., Son of ‘Real Housewives of Salt Lake City’ Star Mary Cosby, Dies at 23 The Hollywood Reporter
- Mary Cosby's son, Robert Jr., charged with domestic violence, had arrest warrant weeks before death Page Six
- Son of ‘Real Housewives of Salt Lake City’ star Mary Cosby dies at 23 The Salt Lake Tribune
- Robert Cosby Jr. Was ‘Not Conscious and Not Breathing’ When 911 Was Called to Mary Cosby’s House People.com
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