Daniel Mickelson’s cause of death has been determined after the actor and model tragically died of an overdose on July 4 at the age of 23. The L.A. County Medical Examiner determined that Mickelson’s death was due to fentanyl and cocaine toxicity in what has been ruled an accident, reported Entertainment Tonight Tuesday. Mickelson previously appeared in the 2019 film The Killer Clown Meets the Candy Man and the series Mani.
Mickelson’s passing was first announced by his sister, model Meredith Mickelson, who shared the news alongside a photo of the two as children on July 5. “My heart is shattered & to write this feels so wrong and I don’t even know what to say. Yesterday i lost my brother, best friend & the other half of my heart. There wasn’t a person i loved more on this earth,” she wrote at the time. “There’s no words that can do him justice that I could write. To know him was to love him.” Calling her brother the “happiest brightest smiley most sunshine human to exist,” Meredith continued she was “so happy God chose me to be his sister for his whole amazing life.”
Videos by PopCulture.com
In her Instagram Story the following day, the model, 22, vowed in a message to her brother to “bring your smile around the world and pour your love into every person in my life.” Mickelson’s death was mourned by several celebrities, including Paris Hilton, Amelia Hamlin, Patrick Schwarzenegger and Kaia Gerber. The daughter of Cindy Crawford took to social media to mourn her late friend, sharing memories of a day they spent coming up with their “own secret language” they continued to speak to one another whenever they came face-to-face.ย
“I wish we could go back there. I wish we were still talking in sentences that probably annoyed everyone else but made us crack up every time,” she continued. “I wish I was still sitting on my bathroom floor FaceTiming you, because that was the only place I had wifi and I never wanted to miss a call from you. Thank you for being the reason for so much laughter and happiness in the world. It won’t be the same without you here. I love you Daniel.”
Most Viewed
-

Beverly Hills, CA – January 31, 2026: Jelly Roll, left, and Bunnie Xo, right, pose for portraits on the red carpet during the 68th GRAMMY Awards Pre-GRAMMY Gala & GRAMMY Salute to Industry Icons Honoring Avery Lipman & Monte Lipman at the Beverly Hilton on Saturday, Jan. 31, 2026 in Beverly Hills, CA. Clive Davisโ annual pre-Grammy party hosts an array of A-listers from entertainment, sports, and politics to come together and enjoy performances. (Kayla Bartkowski/ Los Angeles Times) -

PARK CITY, UTAH – JANUARY 25: Brandi Glanville attends the PBM Princess x Kemo Sabe red carpet event special screening of Rachel Straussโ Documentary "Side Effects May Includeโ during Sundance Film Festival on January 25, 2026 in Park City, Utah. (Photo by Tommaso Boddi/Getty Images for Rachel Strauss) -

CORTINA D'AMPEZZO, ITALY – FEBRUARY 6: Lindsey Vonn of Team United States during the course inspection before the Downhill Training of the Milano Cortina 2026 Winter Olympic Games at Tofane Alpine Skiing Centre on February 6, 2026 in Cortina d'Ampezzo, Italy. (Photo by Daniel Kopatsch/VOIGT/GettyImages)





