On the early morning of Saturday, December 6, 2025, a tragic and heartbreaking incident forever changed the lives of a Yuma family and the entire community with the loss of 21-year-old Mariella Acosta. At approximately 4:45 AM, the Yuma County Sheriff’s Office responded to a devastating vehicle-versus-pedestrian collision near S. Avenue B and W. County 14th Street—a quiet stretch of roadway now marked by profound loss.
The victim, 21-year-old Mariella Acosta of Yuma, Arizona, was walking along the side of the road when she was struck by a passing vehicle. The driver did not stop. Despite the swift response of authorities and emergency personnel, Mariella was tragically pronounced deceased at the scene. Her passing has left a deep void in the hearts of everyone who knew and loved her.
A Life Gone Too Soon
Mariella’s life, though only 21 years young, was filled with warmth, promise, and dreams that reflected the bright future ahead of her. To her family, she was a radiant source of joy—someone whose laughter lit up a room and whose kindness touched the lives of many. Friends describe her as gentle, compassionate, and full of life, always willing to lend a hand or offer a smile to someone who needed it.
Her presence brought comfort. Her spirit brought hope. And her absence leaves an ache that words can scarcely capture.
Mariella had so much yet to experience, so many goals yet to chase, and so much love yet to give. Losing her so suddenly, and so senselessly, is a pain no family should ever have to endure. But today, her loved ones honor her by remembering the beauty she brought into their lives—the memories that will forever remain alive in their hearts.
Seeking Justice and Community Support
The vehicle involved in the collision is described as possibly a sedan or coupe with front passenger-side damage near the headlamp area. The case remains an active and ongoing investigation. The Yuma County Sheriff’s Office, alongside Mariella’s family, is urging the community to come forward with any information that may help bring clarity, accountability, and justice for her.
Even the smallest detail can make a difference. Anyone with information is asked to contact the Yuma County Sheriff’s Office at 928-783-4427 or 78-CRIME for anonymous reporting. Anonymous tips can also be submitted through the Sheriff’s Office website.
Forever Remembered
As her family navigates this unimaginable loss, they cling tightly to the love, memories, and moments that defined Mariella’s life. They ask the community to keep her in their thoughts and prayers, and to honor her by cherishing their loved ones, driving safely, and speaking up when wrongdoing occurs.
Though she may no longer walk beside us, Mariella Acosta’s spirit will continue to live on—in the hearts she touched, in the memories she created, and in the love she left behind.
May she rest in eternal peace, and may justice be served for the young life taken far too soon.
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