Mary Cosby spoke publicly about the death of her 23 year old son, Robert Cosby Jr. , during the September 16 season seven premiere of The Real Housewives of Salt Lake City. The episode marked Mary's first on camera discussion of Robert's death, which happened in February. Mary described Robert as her only child, best friend, and an extraordinary source of love. Mary said she misses their conversations and his company, while Robert's dog, Kray, has also struggled after losing the person he shared his closest bond with. How Is Mary Honoring Robert? Mary said reminders of Robert bring comfort rather than only pain. Mary chose to focus on a homegoing service that celebrated Robert's life, and she said the outpouring of support has continued through roughly 1,000 messages a day from people offering prayers and encouragement. Mary's RHOSLC castmates also visited her home after Robert's funeral, setting aside their usual conflicts to show up for her. Heather Gay called the service energetic and supportive, while Angie Katsanevas , Lisa Barlow , Meredith Marks , Whitney Rose , and Bronwyn Newport joined the show of solidarity. The group reflected Mary's effort to celebrate Robert's legacy while refusing to let grief erase the light he brought to her life.