Brooks Marks Sends Love To 'RHOSLC' Star Mary Cosby Following Son's 'Devastating' Death

Brooks Marks is breaking his silence on Robert Cosby Jr.'s unfortunate death.

Robert, son of "Real Housewives of Salt Lake City" star Mary Cosby, died at age 23 in February 2026.

Mary and Robert Cosby were extremely candid with Bravo viewers over the last year and a half about his previous addiction struggles.

Brooks, star of Bravo's "Next Gen NYC" and son of "RHOSLC" star Meredith Marks, spoke with PEOPLE on Thursday, March 5, at the 37th Annual GLAAD Media Awards in California, and shared his message of support to Mary and the rest of the Cosby family.

"My heart goes out to the Cosby family," Brooks said. Speaking about Robert Jr, Brooks added, "He really was such an incredible person. It's really a devastating, devastating situation."

According to a previous report from The Blast, Robert was found dead in late February 2026 after police were called to respond to a potential overdose.

Mary released a statement shortly after news of Robert's death was made public.

"Our beloved son Robert Jr. has been called home to the Lord," she wrote on Instagram. "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 and Robert had been open with Bravo viewers since 2024 about the latter's personal struggles with drugs.

During an emotional episode, Mary and Robert broke down in tears after the young adult admitted he was using drugs like "Xanax" to help him "chill out."

"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 added.

Robert was released from jail weeks before his death. During the "Real Housewives of Salt Lake City" season 6 reunion, Mary spoke with host Andy Cohen about her son's legal woes.

"I’m not worried about him," she said. "I know he’s somewhere where he’s not using. At some point, I have to step back so that he can learn and he can make his own decisions, and unfortunately, he’s learning the hard way. But I’m OK with it."

"It’s just, you don’t want to see your kid suffer, but I know it’s good,” Mary continued. "And I’d rather him be there than dead, you know?"

Mary explained that she was unable to visit Robert while he was in jail, calling the situation "weird."

"I don't want to look at my child behind a glass," she said. "He calls me every day. I'm basically preaching to him. I'm like, 'You're going through this, but you have to realize that if God is allowing it, and if God allowed it, then it's for your good. This will help you to change, and you gotta change.'"

Since the initial scene of Robert speaking with his mother about his addiction struggles, Mary has kept Bravo viewers in the loop about his recovery. During season 6, episode 2, the pair shared even more about Robert's well-being since completing a rehab program.

"I'm not in that dark place, but, like, it's still there, if that makes sense," he told her on camera. "I just didn't expect it to be like this. ... You have to change who you are as a person. Like, you're so used to doing something you do every day, and it’s a ritual. And then, you just come back home to where you used to do that ritual, and you're not doing it anymore."

In an early March episode of her "Humble Brag" podcast, Cynthia Bailey shared that she was "paralyzed" by Robert's death.

"It's so hard to talk about this," she told her co-host, Crystal Kung Minkoff. "I was really paralyzed by this news when I got it, and I didn't really know what to do, what to say."

Bailey, who stars on "The Real Housewives of Atlanta," added that she spoke with Mary by phone after the news became public to send her condolences.

While Bailey said Mary seemed OK during their conversation, she acknowledged that everyone processes grief differently.

"I think there’s levels, there’s shock, there’s just processing the reality of the situation," she said. "I know I’m doing a horrible job of trying to explain this to you guys, but I just don’t know any other way to do it. I just wanted to recognize that we are all supporting Mary Cosby and her family. This was a huge hit for the Bravo universe. She’s such a big part of it."