Jury convicts woman as drunk driver who killed a young girl walking on a sidewalk in Dorchester

A Suffolk Superior Court jury on Friday convicted Olivia Mora, 42, for the Nov. 26, 2013 crash on Olney Street in Dorchester that killed Briana Rosales, 7, as she walked with her mother - who suffered critical injuries herself - the Suffolk County District Attorney's office reports.

The jury found Mora guilty of manslaughter OUI, motor-vehicle homicide, OUI causing serious bodily injury and assault and battery with a dangerous weapon, the DA's office reports. Mora is scheduled for sentencing on Jan 6.

According to the DA's office:

During the course of the two week trial, Second Assistant District Attorney Masai King presented evidence and testimony to prove that the defendant was intoxicated while driving a Chevy Tahoe SUV in Dorchester at approximately 2:00 p.m. on the day of the fatal crash. The evidence proved that the defendant was operating on Geneva Avenue toward Bowdoin Street in the wrong lane in order to pass a T bus. She was driving above the posted speed limit of 30 miles per hour when she took a left turn onto Olney Street. She was aware there was a school in the area, but was traveling in excess of 53 miles per hour, when she struck a parked vehicle with enough force to push the parked car six feet forward. The defendant then struck a fire hydrant and continued onto the sidewalk where Brianna and her mother were walking.

Brianna was transported to Boston Medical Center, where she died of her injuries. Her mother suffered critical injuries including a shattered left femur and spent months recovering at a hospital.

After the crash, the defendant failed a series of field sobriety tests. A subsequent blood test showed that the defendant’s blood alcohol content at the time of the crash was well above the legal limit when she struck the victims.