Crime Kristin Cavallari Steps Out as She Reveals Heartbreak Over Brother Michael's Death Michael Cavallari went missing the day after Thanksgiving By Michele Corriston Published on December 11, 2015 09:20 AM Share Tweet Pin Email Photo: Splash News A somber Kristin Cavallari was spotted taking a walk around her Chicago neighborhood as news of her beloved brother’s death broke Thursday. The Laguna Beach star confirmed that police discovered Michael Cavallari’s body nearly two weeks after he went missing in Utah. He was 30. “We want to thank everyone for their love, support and prayers during this very difficult time. We have just been informed by the authorities my brother’s body has been found,” Kristin, 28, told PEOPLE in a statement. “This is a very painful time and we are still processing it all. We kindly ask everyone please respect our privacy during our time of grieving.” Kristin also paid tribute to Michael on Instagram, sharing a photo of the siblings as toddlers. “My heart is in a million pieces,” she wrote. “Mikey, I could always count on you to make me laugh. You had such a good heart and will be forever missed. I’m at a loss for words but I know u are in a better place and finally at peace. I love u so much RIP.” Officials said Michael’s body was discovered in the Salt Wash area near exit 175 on I-70 in Grand County, which is described as having steep and rocky terrain. He went missing Nov. 27 after abandoning his car off the highway. And a day earlier, he was arrested in Orange County and briefly held in jail.