Kristin Cavallari’s older brother, Michael Cavallari, has been reported as missing. He hasn’t been seen since the day after Thanksgiving — Friday, Nov. 27 — after his car was found abandoned on a highway in Grand County, Utah.
According to the Grand County Sheriff’s Office, his 2014 Honda Civic was found five miles south of Interstate 70 and exit 175. Authorities searched the area but did not find the driver.
The car was registered to someone who lived in San Clemente, Calif., and investigators have looked at credit card transaction receipts and surveillance from a convenience store in Monticello, Utah, to confirm that Michael was the driver.
The Grand County Sheriff’s Office said in a press release that it is treating the disappearance as an active missing persons investigation.
Just days after Michael went missing, on Sunday, Nov. 29, Kristin shared a post on Instagram about skipping her 10-year high school reunion because she was taking care of her baby girl, Saylor James.
The Hills star, 28, welcomed her third child (and first daughter), with Chicago Bears quarterback husband Jay Cutler on Monday, Nov. 23.
Those with information are asked to contact the Grand County Sheriff’s office at 435-359-8115.