Mary Cosby, a prominent figure on Bravo's 'The Real Housewives of Salt Lake City,' is mourning the tragic death of her son, Robert Cosby Jr., who passed away at the age of 23. The news, initially reported by TMZ and ExtraTV.com, was confirmed by Mary Cosby herself in a heartfelt statement shared on Instagram.

Robert Cosby Jr. died on Monday, February 23, 2026, in Utah. The Salt Lake City Police Department confirmed responding to a call for a "full arrest/medical emergency" involving a 23-year-old male, with authorities noting the incident became a death investigation. While reports suggest a possible overdose, the official cause of death is pending investigation by a medical examiner.

Mary Cosby released a statement expressing her profound grief: "Our beloved son Robert Jr. has been called home to the Lord. Though our hearts ache, we take comfort in God's promise and in knowing he is finally at peace. We are grateful for your prayers and trust in the Lord to carry us through this time of sorrow." Robert Jr.'s struggles with substance addiction and mental health challenges were openly discussed on 'The Real Housewives of Salt Lake City,' and he had recently been released from jail after pleading guilty to charges including assault and violating a protective order against his estranged wife, Alexiana Smokoff.

Executive producer Andy Cohen and fellow 'Real Housewives' cast members have extended their condolences to Mary Cosby and her family during this incredibly difficult time. Bravo also released a statement saying, "We are heartbroken to learn of the passing of Mary's beloved son, Robert Jr. Mary is a cherished member of our family, and our thoughts, love, and deepest condolences are with her and her loved ones during this incredibly difficult time."