Salt Lake City, UT – Robert Cosby Jr., son of “Real Housewives of Salt Lake City” star Mary Cosby, has died at the age of 23. His death follows a period of legal troubles and a public struggle with personal challenges, bringing a somber turn to the reality television landscape and impacting those who followed his story.
The Salt Lake City Police Department confirmed to Page Six that officers responded to an overdose call on Monday evening, which ultimately resulted in a death investigation. People Magazine first reported the news. A representative for Mary Cosby was not immediately available for comment.
Robert Cosby Jr.’s life had recently been the subject of discussion on “RHOSLC,” with his mother openly addressing his legal issues during the Season 6 reunion in January. These issues stemmed from a complex relationship with his estranged wife, Alexiana Smokoff, and a history of alleged substance use. The couple reportedly married in August 2022, keeping the ceremony secret from Cosby, a detail that unfolded as a storyline in Season 4 of the Bravo series.
A History of Legal Challenges
Robert Cosby Jr. Faced multiple run-ins with the law, most recently involving a violation of a restraining order. During the reunion, Mary Cosby emotionally revealed that her son had allegedly violated a restraining order place in place by Alexiana Smokoff’s family, believing she wanted him to return to her. “I don’t know where he’s getting that from … delusional,” Cosby stated, according to reports from the reunion.
Prior to his recent legal troubles, Cosby Jr. Had been released from jail on February 3, 2026, after serving two months for violating a protective order and damaging property at his ex-wife’s family home. He was sentenced to 36 months of probation, but prosecutors subsequently filed two felony charges against him on February 5, 2026: felony assault and felony aggravated assault, related to an incident with Smokoff that occurred on May 18, 2024. Yahoo Entertainment reported on these charges.
According to court documents reviewed by Starcasm, Alexiana Smokoff claimed that Robert Cosby Jr. Physically assaulted her, allegedly “beat[ing] her in the face and head,” kicking her in the stomach, and grabbing her by the throat after she disposed of his drugs.
Relationship with Alexiana Smokoff
The relationship between Robert Cosby Jr. And Alexiana Smokoff was a focal point of discussion on “RHOSLC.” Their marriage, initially concealed from Mary Cosby, became a storyline on the show, as did their struggles with alleged drug use. The couple’s divorce proceedings were ongoing at the time of Robert Cosby Jr.’s death.
The complexities of their relationship were further highlighted by the legal battles and restraining orders, painting a picture of a troubled dynamic. Mary Cosby’s public discussion of her son’s struggles underscored the challenges faced by families dealing with addiction and legal issues.
Looking Ahead
As of this writing, the investigation into Robert Cosby Jr.’s death is ongoing. Authorities have not released further details regarding the circumstances surrounding his passing. His sentencing hearing, previously scheduled for February 2026, as noted by Bravo’s Andy Cohen, will no longer grab place.
The death of Robert Cosby Jr. Marks a tragic loss for his family and those who followed his story. The coming days will likely bring further details as the investigation unfolds, and the focus will be on supporting Mary Cosby and those affected by this devastating event.
If you or someone you know is struggling with substance abuse or mental health issues, please reach out for aid. The Substance Abuse and Mental Health Services Administration (SAMHSA) National Helpline is available 24/7 at 1-800-662-HELP (4357). You can find additional resources at https://www.samhsa.gov/.
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