In Los Angeles County, the Los Angeles County Department of Medical Examiner has confirmed the passing of attorney Joshua DuClos, a distinguished partner in the Mergers & Acquisitions and Private Equity practice at Sidley Austin LLP’s Century City office. He was 45 years old. Reports note his death at his residence, with the case logged under Case No. 2025-16771.
Josh stood out in his field — widely respected by colleagues and clients for his legal acumen, integrity, and mentorship. At Sidley Austin, he was known as one of the firm’s most trusted M&A attorneys, especially in complex transactions involving private equity and corporate clients. His profile at the firm lists his role in guiding high-stakes strategic deals.
Beyond his legal practice, he also gave back through education. Josh served as an adjunct professor at Pepperdine Caruso School of Law, teaching Mergers & Acquisitions, where students recall his ability to make intricate legal topics accessible while nurturing their curiosity and ethical reflection. (Though his teaching role is confirmed in his professional profile, public sources do not yet list full tributes reflecting this portion of his life.)
His dedication extended further: he had been a Senior Fellow with Humanity in Action since 2003, committing himself to issues of human rights, civic engagement, and ethical leadership. That dimension of his life added a deep resonance to his professional achievements and personal relationships.
Friends and colleagues describe Josh not just as brilliant, but as warm, humble, and generous. He is remembered as a mentor who always listened, a friend who stayed true, and a professional who led quietly by example. The void his passing leaves is felt not only within his law firm but across the academic and civic circles he touched.
At present, further details regarding a formal obituary, funeral arrangements, and how the many lives he impacted will pay tribute are still forthcoming. In the meantime, those who knew Josh continue to honour him through their work, their values, and the kindness he inspired.
Though brief, his life and career left a lasting imprint on many — a legacy defined by professional excellence, personal integrity, and a genuine commitment to others. His departure is deeply felt, and his influence will endure.
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