Courtesy the family via KUSA Veronica Moser-Sullivan, 6, was the youngest victim of the rampage.

Updated at 5 p.m., Sunday ET: A woman who was shot in the Aurora, Colo., theater shooting rampage has suffered a miscarriage, her family said.

Ashley Moser, the mother of the youngest victim killed in the shooting, was pregnant and was shot in the neck and stomach during the attack July 20. The family said the trauma that Moser sustained caused a miscarriage and that she underwent more surgery on Saturday morning.

Moser, 25, is being treated at Aurora Medical Center.

The family released the following statement:

Ashley Moser is recovering from an additional surgery she had this morning. Tragically, the extreme trauma she sustained also caused a miscarriage. We want to send a special thank you to the courageous heroes of law enforcement, other first responders, paramedics, and doctors and nurses who have all gone beyond the call-of-duty in caring for our daughter, granddaughter and all of the other victims of this tragic event. Our sincere appreciation goes out to all of those who have been sending well-wishes, prayers and good thoughts to Ashley. Her lifetime of care will be a long road. For those who wish to donate, please go to any Wells Fargo Bank and request the "Donation Account for Ashley and Veronica Moser." This is the only official donation account for the family.

Funeral arrangements for Moser's daughter, Veronica Moser-Sullivan, 6, are still pending.

Until recently, Moser and her daughter had lived with Moser's father -- Veronica's grandfather -- David Moser. But two months ago, David Moser, 65, died after a 10-month battle with leukemia.

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Defense attorney Karen Steinhauser, a former prosecutor and current adjunct professor at the University of Denver, told The Associated Press that suspected gunman James Holmes, 24, will not face an additional charge as result of the miscarriage. She said charges in Colorado apply onto to those "who had been born and alive."

Holmes, a former doctoral student studying neuroscience, is accused of opening fire in the theater, killing Veronica and 11 others, and wounding 58. He is due to be formally charged Monday in Colorado.

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