Sister Wivesstars Janelle and Kody Brown are mourning the loss of their son Robert Garrison Brown at 25.

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.

Garrison Brown

Garrison Brown.Janelle Brown/Instagram

We ask that you hey respect our privacy and join us in honoring his memory."

Their posts also featured two photos of their son, who went by Garrison.

There was no indication of foul play, and detectives from the Criminal Investigations Division are investigating.

Janelle and Kody also share daughters Maddie and Savannah and sons Logan, Hunter, and Gabe.

We extend our deepest sympathies and heartfelt condolences to the Brown family at this difficult time."