'Real Housewives' star Mary Cosby's son dead at 23

Mary Cosby's son, Robert Cosby, Jr., died Monday in Utah, Fox News Digital confirmed. He was 23.

Officers responded to a "possible overdose" call at around 6:14 p.m., the Salt Lake City police department said. "Once on scene officers found 23-year-old Robert Cosby Jr. had died."

Authorities added that the medical examiner is investigating the cause of death as the case remains open. 

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