Olivia Mora, the driver in the 2013 drunken driving crash that killed a 7-year-old girl, was found guilty on manslaughter and other charges Friday in Suffolk Superior Court.

Mora, 42, of Boston was found guilty of manslaughter while operating under the influence, motor vehicle homicide, an OUI causing serious bodily injury and assault and battery with a dangerous weapon, according to a news release from the Suffolk County District Attorney’s Office.

Mora’s sentencing is set for Jan. 6 before Judge Mary K. Ames in Suffolk Superior Court.

The conviction brings closure to a two-week trial over the Dorchester crash that killed 7-year-old Brianna Rosales and injured her mother six years ago.

“Brianna has been gone for nearly as long as she was on this Earth, and the pain of her loss doesn’t lessen with time. Each family gathering without her present and every milestone that she should have reached as she grew up, is a new source of pain for her loved ones,” Suffolk County District Attorney Rachael Rollins said. “Her life – and its tragic loss – is as important as any other in Suffolk County and attention to her must be paid."

On Nov. 26, 2013, Mora was driving a Chevy Tahoe SUV on Geneva Avenue at a speed of at least 53 miles per hour before turning left onto Olney Street, authorities said. The posted speed limit is 30 miles per hour.

Mora struck a parked car — the impact was strong enough to push the car six feet forward — slammed past a fire hydrant and drove onto the sidewalk where Brianna and her mother were walking, authorities said. The crash occurred around 2 p.m.

Brianna was taken to Boston Medical Center, where she died from her injuries. Her mother suffered a shattered left femur and other injuries. She spent months recovering at a local hospital.

Seven-year-old Brianna Rosales was killed in a drunken driving crash in Dorchester in 2013.

During the trial, Second Assistant District Attorney Masai King presented evidence and testimony to show the Mora was intoxicated at the time of the crash and was speeding even though she knew about the school in the neighborhood, according to the Suffolk County District Attorney’s office.

Mora failed multiple field sobriety tests, and a subsequent test showed her blood-alcohol-content level was above the legal limit at the time of the crash, authorities said.

“While this verdict cannot heal her family’s deep pain, I hope that the knowledge that the person responsible for Brianna’s death is being held accountable brings some peace,” Rollins said. "My Office will continue to provide any support and assistance this family may need.”