'RHOSLC' star Mary Cosby’s son, Robert Cosby Jr., dies at 23
Pictured: Mary Cosby -- (Photo by: Charles Sykes/Bravo via Getty Images) (Getty Images)
SALT LAKE CITY (KTTV) - "Real Housewives of Salt Lake City" star Mary Cosby is mourning the death of her son, Robert Cosby Jr. He was her only child.
What we know:
TMZ reported that Salt Lake City police responded Monday to a call described as a "full arrest/medical emergency" involving a 23-year-old man. The man was pronounced dead at the scene, TMZ reported.
On Season 5 of the Bravo series, Cosby and her son shared an emotional conversation in which he discussed struggles with substance use. He agreed to seek treatment, and Cosby later said he was doing well on an episode of "Watch What Happens Live with Andy Cohen."
The following season, Cosby said she was taking things day by day and that her son had relapsed as she continued trying to support him.
In November 2025, Robert Cosby Jr. was arrested after authorities said he went to his estranged wife’s family home. He later pleaded guilty to eight charges, including assault and violation of a protective order, according to US Weekly.
Around the same time, his wife, Alexiana Arian Smokoff, filed for divorce, the entertainment outlet reported.
Just two weeks ago, she shared a photo of her son and thanked fans for their prayers.
Bravo, Mary Cosby release statements
What they're saying:
"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," Cosby wrote.
"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," Brav wrote on social media.
What we don't know:
An official cause of death has not been released.
Dig deeper:
Earlier this year, a documentary was released called "The Cult of the Real Housewife," alleging Mary Cosby was a cult leader.
The Source: This article is based on reporting from TMZ and statements from Salt Lake City police regarding their response to a medical emergency call. Additional background information comes from past episodes of Bravo’s "Real Housewives of Salt Lake City."