Michael Cavallari - the brother of reality star Kristin Cavallari and brother-in-law of Chicago Bears quarterback Jay Cutler - has been found dead. He was 30 years old.
No cause of death has been released, but Michael had been missing for two weeks prior to his body being found, and it is widely believed that he took his own life.
Sadly, Michael had been struggling with addiction for several years, and sources say he behaved erratically in the days leading up to his disappearance.
Cavallari was arrested on November 23 for using a gun to threaten an unidentified woman.
It appears as though he fled Los Angeles shortly after being released from police custody, but he was not reported missing for several days.
Last week, Cavallari's car was found abandoned on a highway in Eastern Utah with the motor still running.
On Tuesday, his famous sister thanked fans for their support in an Instagram message that led many to believe she suspected her worst fears would soon be confirmed:
"I appreciate all the concern, thoughts, and prayers that have been extended to me and my family," Kristen wrote.
"We remain hopeful and I will share any news that we receive. I have such gratitude for all those that have shared their support."
Kristin, who welcomed her second child just last month, has yet to publicly respond to the news of her brother's death.
We'll have updates on this story as more information becomes available.