Mary Cosby's Son from 'Real Housewives of Salt Lake City' Dies. He Was 23 Years Old

23-year-old Robert Cosby Jr., the son of Mary Cosby, one of the cast members of the popular reality show "Real Housewives of Salt Lake City", was found dead in his apartment. The incident occurred on Monday, February 23rd, around 6:14 PM. According to the Salt Lake City Police Department, officers were called to the scene in response to a report of a possible overdose. The official cause of death has not yet been determined, and an investigation is ongoing. The parents of the deceased, Mary and Robert Cosby Sr., confirmed the tragic news in a moving statement. They wrote that their "beloved son Robert Jr. has been called to the Lord." They also expressed gratitude for the prayers received and assured that they place their trust in God to help them through this difficult time. The life and struggles of Robert Cosby Jr. were no secret to viewers. In the show's fifth season, aired in 2024, the young man spoke candidly with his mother about his addiction to drugs and medication. He admitted to taking Xanax to "calm down" and Adderall to "balance the effects of Xanax." He also recounted that his experimentation with psychoactive substances began at age 16 when someone gave him Xanax at a party. He mentioned subsequent experiments with LSD, MDMA (commonly known as "Molly"), and cocaine, and also spoke about his struggles with depression. His troubles extended beyond addiction. In November 2025, as reported by People magazine, he was arrested on charges of assault, criminal trespass, and violation of a protective order. He spent four months in jail on these charges. During this time, in February 2026, he was visited by his wife, Alexiana Smokoff. The couple had secretly married, hiding this fact from the Cosby family. The "Real Housewives" franchise, produced by the Bravo network, is one of the most recognizable reality television formats in the world. Launched in 2006, it focuses on the personal lives, careers, and conflicts among affluent women in various American cities. "Real Housewives of Salt Lake City" premiered in 2020, and Mary Cosby has been part of the cast since the first season. The tragic death prompted an immediate reaction from the entertainment world. Andy Cohen, executive producer and iconic face of the "Real Housewives" franchise, wrote on Threads: "Devastatingly sad news out of Salt Lake City. It is every parent's worst nightmare. My heart is broken for Mary and I send all my love to her and Robert Sr." The Bravo television network also joined in expressing condolences, stating in an official announcement its deep sadness and support for the family. The death of Robert Cosby Jr. once again highlights the dark side of life in the reality show spotlight, where personal dramas and struggles become public entertainment. The family is now requesting privacy during this time of mourning.