The Real Housewives of Salt Lake City star Mary Cosby has broken her silence after her son Robert Cosby Jr.'s untimely death. "Our beloved son Robert Jr. has been called home to the Lord," Mary, 53, told Us Weekly on Wednesday, February 25. "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." Earlier on Wednesday, a Salt Lake City Police Department spokesperson told Us that they responded to a dispatch for an overdose at 6:14 p.m. on Monday, February 23.