The reality star posted a throwback photo of she and her brother Michael Cavallari.
Michael Cavallari was found dead in Grand County, Utah, on Thursday.
Sad news for Kristin Cavallari. Her older brother Michael has been found dead.
ET confirms Michael Cavallari's body has been found - he'd been missing for about two weeks.
The former reality star's sibling, Michael Cavallari, hasn't been seen or heard from for 10 days, an officer from the Grand County Sheriff's Office tells ET.
At ET's request, the Orange County Sheriff's Department released more information on Michael Cavallari's arrest last month
Kristin Cavallari sent a sweet message expressing her gratitude after news broke that her brother, Michael Cavallari, has been missing for 10 days.
Kristin Cavallari's brother Michael got into legal trouble just days before he went missing.
'The Hills' star sent a message to her Twitter followers after news broke that her 30-year-old sibling has vanished.
The reality TV star's sibling was last seen on Nov. 27, according to reports.
The reality star is also planning to name her unborn baby girl Sailor.
The 'Laguna Beach' star and her NFL star hubby welcomed their third child on Monday.
The 25-year-old shared the moniker on Instagram.
No basic bellies here!
