Robert Cosby Jr., son of ‘Real Housewives of Salt Lake City’ star, dies at 23

Feb 25, 2026, 1:15 PM | Updated: 1:19 pm

Mary Cosby attends Las Culturistas Culture Awards at The Orpheum Theatre on July 17, 2025 in Los Angeles, California. (Maya Dehlin Spach/Getty Images)

(Maya Dehlin Spach/Getty Images)

BY MARY CULBERTSON

KSLNewsRadio

SALT LAKE CITY — Robert Cosby Jr., son of “Real Housewives of Salt Lake City” star Mary Cosby, has died at 23, according to police.

The Salt Lake City Police Department confirmed a possible overdose had occurred on Monday at approximately 6:14 p.m. Responding officers found Robert Cosby Jr. had died.

His cause of death was still unclear as of Wednesday afternoon, and the matter was still under investigation, according to Sgt. Greg Wilking with Salt Lake City police.

This is a developing story. It may be updated.

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Robert Cosby Jr., son of ‘Real Housewives of Salt Lake City’ star, dies at 23

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