Mary Cosby in a split-screen editorial image opposite a young man eating at a table in a clean indoor setting. Mary Cosby in a split-screen editorial image opposite a young man eating at a table in a clean indoor setting.

Mary Cosby Confirms Son Robert Cosby Jr. Dies at 23

Mary Cosby verified that her son, Robert Cosby Jr. has failed at age 23. Police responded Monday night to a call described as a “full arrest/medical emergency” involving a 23-year-old male and fire and paramedics were dispatched to assist.

Officials initially treated the incident as a possible overdose call, but it escalated into a death investigation. The cause of death has not been publicly confirmed and the medical examiner’s investigation was described as ongoing. That unresolved status is central to the situation, as it means personal statements and public reactions are occurring before definitive official findings are available.

In her statement, Mary Cosby said her son “has been called home to the Lord,” and asked for prayers. Her husband, Robert Cosby Sr., was included in the family’s message expressing grief and requesting support.

On The Real Housewives of Salt Lake City, Mary Cosby’s son had been shown discussing struggles with substance use and mental health, including admitting to using multiple drugs and experiencing suicidal thoughts. Reporting also described legal issues in the months before his death, including a period of incarceration and a release earlier this month. His wife, Alexiana Smokoff, was reported to have filed for divorce in November 2025, after their 2022 marriage. Andy Cohen shared a public message of condolence to Mary Cosby and her family.