"Sister Wives" personalities Janelle and Kody Brown are grieving the passing of their adult son, Garrison.

Both shared identical announcements on March 5, revealing the unfortunate death of the 25-year-old.

"Kody and I are deeply saddened to announce the loss of our beautiful boy, Robert Garrison Brown," expressed Janelle Brown in her post.

"He was a bright spot in the lives of all who knew him. His loss will leave such a big hole in our lives that it takes our breath away. We ask that you please respect our privacy and join us in honoring his memory."

Kody Brown echoed the same announcement on his page, accompanied by pictures of their son in uniform.

A spokesperson from Arizona's Flagstaff Police Department confirmed Garrison Brown's death in a statement to YEPPOST.com.

"It is with great sadness I confirm Mr. Robert Garrison Brown was located in his residence deceased," the release stated. It further confirmed that Garrison Brown's younger brother, Gabe Brown, was present at home when the police responded.

Police asserted there was no indication of foul play, and detectives are currently conducting an investigation.

The Brown family, known for their involvement in the TLC show "Sister Wives," has been a subject of public interest. Janelle Brown became Kody Brown’s second wife in 1993.

Following their marriage, the couple welcomed six children into their family — Logan, Madison, Hunter, (Robert) Garrison, Gabriel (Gabe), and Savanah.

In December 2022, Janelle Brown confirmed a separation from Kody that had been ongoing for several months. Despite the breakup, she revealed in the following year that she continued to reside in Flagstaff, Arizona.

In a November 2023 post, Janelle expressed her enjoyment of living in the desert state, citing the presence of three of her children, including Garrison, who still resided in town.

Janelle Brown, along with Kody Brown's three other wives — Meri, Christine Brown, and Robyn Brown — and their children, relocated to an undeveloped tract of land in Flagstaff in 2018 with the intention of building a single-family home together.

However, Christine Brown separated from Kody in 2021. In January 2023, Meri and Kody Brown announced their decision to "permanently terminate" their marriage. Robyn Brown remains his last wife.

Garrison and Gabriel Brown became estranged from their father due to his stringent COVID-19 protocols during Season 17, and this estrangement persisted into Season 18.