Robert Cosby Jr., the son of “Real Housewives of Salt Lake City” star Mary Cosby, was unconscious when police responded to a 911 call before his death.
The dispatcher said, according to audio exclusively obtained by Page Six, “23-year-old male, not conscious, not breathing. One dose of Narcan has been given.”
“Police have been called. Three units in route,” the dispatcher added.
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A Salt Lake City Police Department spokesperson told Page Six that Robert was found dead on Monday after officers “responded to an overdose call that turned into a death investigation.”
They responded to the call at 6:14 p.m., authorities confirmed.
Mary and her husband, Robert Sr., released a joint statement Monday, writing, “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.”
Mary’s rep did not immediately respond to Page Six’s request for comment.
TMZ was the first to report on the death.
Bravo executive Andy Cohen mourned the loss in an Instagram Threads statement Wednesday.
“Devastatingly sad news out of SLC,” he wrote. “This is every parent’s worst nightmare. My heart is broken for Mary, and I am sending all my love to her and Robert Sr.”
Robert’s death comes four months after his estranged wife, Alexiana Smokoff, filed for divorce after three years of marriage.
The former couple reportedly got married in a Utah courthouse in August 2022, with their secret marriage playing out in front of cameras for Season 4 of “RHOSLC.”
Robert and Smokoff’s alleged drug use was also a storyline in Season 6, which was filmed in early 2025.
In one emotional moment, Robert told his mother that he was “at a standstill” in his recovery after completing a 30-day rehab stint.
“I’m not in that dark place, but, like, it’s still there, if that makes sense,” he said, explaining that he is struggling without the ritual.
Robert’s relapse was revealed later that season after he was arrested in November for allegedly violating a restraining order put in place by Smokoff’s family.
“[Her family] filed a restraining order against him, and he went back anyway, thinking that she want[ed] him to come back and save her,” Mary revealed in the episode. “I don’t know where he’s getting that from … delusional.”
The Bravolebrity, 53, admitted that she refused to visit her son in jail and talk to him from behind the glass. However, she shared that she was sending him books to read.