'RHOSLC' Star Mary Cosby Remembers Late Son Robert Cosby Jr. In Heartfelt Post

"Real Housewives of Salt Lake City" star Mary Cosby shared an emotional tribute to her late son, Robert, on Instagram.

The Bravoverse is still reeling over the unexpected loss of Mary Cosby's 23-year-old son, Robert Cosby Jr. According to previous reports from The Blast, Robert was found dead by Salt Lake City police officers in late February 2026 after responding to a potential overdose.

Mary Cosby spoke openly about her son's struggle with addiction on previous episodes of Bravo's "Real Housewives of Salt Lake City." In one emotional scene, the pair broke down in tears after discussing the challenges Robert had been facing.

Mary Cosby Shares An Emotional Tribute To Her Son, Robert Cosby Jr., Following The 23-Year-Old's Tragic Death

 

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Mary, who's been one of the OG cast members of "RHOSLC" since 2020, has been an open book since joining the Bravo family. Over the last six seasons, the Utah native gave viewers an in-depth look into her life as a pastor, First Lady, mother, and wife.

In previous episodes, Mary spoke candidly about some of her family struggles, including challenges in her marriage and as a parent to Robert. Despite that, Mary told her co-stars she'd remain committed to helping her son become the best person he could be.

Unfortunately, Robert passed away from a potential overdose in late February 2026, sending a wave of sadness through Bravo watchers. While Mary initially posted about her tragic loss on Instagram, saying Robert had been "called home to the Lord," she shared another post in the early hours of February 28, 2026.

"I'm going to miss you, bubs," she captioned a throwback photo of herself and Robert. "#Godfirst, #Love, #Forever," she added.

Robert Cosby Previously Told His Mother That He Was Using Hard Drugs To Help Him Get Through Life

@bravotv Mary's son is sharing his story on #RHOSLC. #RealHousewivesOfSaltLakeCity #MaryCosby ♬ Mary and Robert Jr from RHOSLC - Bravo

The news of Robert's death hit some "RHOSLC" watchers hard, considering the 23-year-old previously spoke with his mother about his addiction struggles in a season 5 episode that moved many to tears.

After admitting to taking drugs such as Xanax to help him "chill out," Robert then told his mother that he uses drugs to help him feel something. "I just took half to chill me out, and then I had an Adderall to balance out the Xanax. … When I get high, it's like adding seasoning to [my life]," he said.

At another point in that conversation, Robert shared that his body got so used to the drugs that he had to take more to try to feel a sliver of what he used to.

"Then, I started doing Xanax with Acid, and then Molly with Xanax. I really like Xanax, so I mix it with everything. Xanax and cocaine. You know the regular 30mg Oxys? I noticed … this was, like, a turning point for me. I was taking 10 at once, and I couldn't even feel it," he said.

Mary Cosby Was Hopeful Her Son Robert Would Change His Behavior

In an October 2025 interview with Us Weekly, Mary discussed her moving scene with Robert and admitted that she was "truly shocked" to learn he'd been struggling so intensely with drugs. She then explained that she felt like a failure, assuming she'd missed something in his childhood that may have led him to use substances.

While surprised, Mary said that she relied on her faith to get her through. "I need God for that kind of support and that kind of help to get me through," she said. "Because my tests and trials and my journey in life [are] way, way bigger than I make it out to be, so I need the higher help."

During that interview, Mary also revealed that while Robert had a "little setback," she was hopeful he'd find his way.

Andy Cohen Breaks His Silence On Robert Cosby's Death

According to The Blast, Mary's Bravo peers have been rallying around her during this difficult time.

Andy Cohen took a moment to offer his condolences during an episode of "Watch What Happens Live," saying he was sending "all my love" to Mary and her family.

“This devastatingly sad news is every parent’s worst nightmare. My heart breaks for Mary. I will always appreciate getting a small window into the unconditional love between Mary and Robert Jr.,” he added.

'Real Housewives' Stars Offer Support To Mary During This Challenging Time

Other public figures affiliated with the "Real Housewives" franchise also spoke out, including Dolores Catania, Cynthia Bailey, Lisa Hochstein, Whitney Rose, Heather Gay, and Lisa Barlow.

Mary's best friend on the show, Angie Katsanevas, also shared a moving comment.

"Thank you for sharing Bubbs with my family and the world," she wrote. "I am here for you. May God bless your family, and may his memory be eternal. I love you, Mary."