The Real Housewives of Salt Lake City cast is mourning a huge loss today. Mary Cosby’s beloved son, Robert Cosby Jr., has passed away. He was just twenty-three at the time of his death. So, what is known so far about the RHOSLC star? Keep reading for all of the details.
Robert Cosby Jr. Dead At 23
The RHOSLC world has been shaken with the news that Mary Cosby’s son, Robert Jr., has passed away. Viewers know that he has struggled with addiction and was just released from jail. Mary and Robert had a candid, on-camera conversation about his struggles, and it broke hearts everywhere. To see him being so open and transparent was beautiful. Moreover, Mary was kind and loving throughout everything that her son shared. She had given an update at the Season 5 reunion that he was doing far better.
Sadly, that did not last. Upon being released from prison, Robert faced even more charges in early 2026, brought on by his ex-wife. Now, Robert has sadly passed away. He was just 23 when he passed away on Monday, February 23rd, in Salt Lake City, Utah. Allegedly, authorities came by in response to a possible overdose. That evening, they had gotten a call regarding a “full arrest/medical emergency.” Tragically, it turned into a death, being that of The Real Housewives of Salt Lake City star Robert Cosby Jr.
As of now, the cause of Robert’s death is unknown, even though police were dispatched for an overdose. After fans learned of this, their hearts broke for Mary Cosby. They knew how much she adored her son. Moreover, they knew how much she tried to save him. Sadly, he was far too deep and could not get out. This comes on the heels of a three-part TLC documentary of Mary’s shady involvement with her church.
A Tragic End
RHOSLC fans are broken for Mary Cosby and her family right now. They have seen the way that she loved Robert and how hard she tried to save him. He seemed to want to get better when he had a candid conversation with his mother. Unfortunately, it was too late. Fans and followers expressed their sadness:
- Devastating! Will pray for Mary and Robert Sr. That is a club that I never want to join
- Sending prayers and condolences to her family.
- Oh my goodness. It pains me to hear of someone burying his or her child
- I am so sorry for your loss Mary. Your only child. You did everything you possibly could to save him. RIP young one. Sending you prayers.
It is unclear if this will keep her from returning for Season 7, but our thoughts are with Mary Cosby during this time. Finally, were you a Salt Lake City fan? Let us know, and may his memory be a blessing.
Amanda has been a professional freelance writer for over a decade, holding both a BA and an MA. Her passions include animals, iced coffee, gnomes, summer, music, and ‘Vanderpump Rules’.