The Real Housewives of Salt Lake City women are supporting costar Mary Cosby after the death of her son, Robert Cosby Jr. Mary and husband Robert Cosby Sr. confirmed the news on Wednesday, February 25, sharing that their son has "been called home to the Lord." He was 23. "Though our hearts ache, we take comfort in God's promise and in knowing he is finally at peace," the couple wrote in a statement to Us Weekly. "We are grateful for your prayers and trust in the Lord to carry us through this time of sorrow.