Mary Cosby’s Son Robert Jr. Dead at 23

Robert Cosby Jr., the son of “The Real Housewives of Salt Lake City” star Mary Cosby, has died at the age of 23.

According to TMZ, Robert died Monday in Utah. Police in Salt Lake City confirmed they responded Monday night to a call for a “full arrest/medical emergency” involving a 23-year-old male. Fire and paramedics were also dispatched to the scene. Authorities said the call later turned into a death investigation. The official cause of death has not been confirmed, though police responded to what was reported as a possible overdose.

Robert appeared on RHOSLC over several seasons. During season 4, Mary learned that Robert had secretly married Alexiana Smokoff without telling her. The couple reportedly wed at a Utah courthouse in August 2022. Robert and Alexiana’s alleged struggles with substance use were also discussed as part of Mary’s storyline on the Bravo series.

His death comes just months after Alexiana filed for divorce.

Robert had also faced legal troubles in recent years. He was arrested in Utah in September on multiple alleged charges, including trespassing and assault. In 2022, he was arrested for DUI after police said he did not have a valid license and failed to follow traffic laws. He later pleaded guilty to the DUI charge.

Robert was 23 years old.

If you or someone you know is struggling with substance abuse, help is available through the Substance Abuse and Mental Health Services Administration’s national helpline at 1-800-662-HELP (4357).

About Perry Carpenter

Perry Carpenter has been covering entertainment news for more than 20 years — and yes, she absolutely has opinions about the latest Bravo casting shake-ups. Throughout her career, she has specialized in celebrity news and television, with a particular obsession for all things Bravo, "The Challenge," "Outlander," of course, Travis & Taylor, and the ever-expanding Taylor Sheridan universe. A member of the International Association of Professional Writers and Editors, Perry has built a storied freelance career covering pop culture's biggest moments and smallest Easter eggs. Her work has appeared in Showbiz Cheatsheet, Daily Express, Radar Online, and on her Muck Rack profile.