A Granite Bay teen will see prison time for her role in a drive-by shooting that left a high-school sophomore hospitalized.

Kelsey Mariah Brace, 18, was sentenced to three years in prison Wednesday on two charges of assault with a firearm. She pleaded guilty in August as part of an agreement with prosecutors.

Police say Brace and her then-boyfriend, Justin Mathew Wittkop, acted together in the Nov. 5, 2008 shooting along Sierra College Boulevard near Douglas Boulevard in Roseville. Wittkop, 19, also of Granite Bay, has rejected a plea agreement and is slated to go to trial in January.

Prosecutors say on Nov. 5, Brace called Wittkop, with whom she was living, to “take care of” some teens after getting into a fight in a McDonald’s parking lot.

Later that day, Brace sat in the passenger seat of Wittkop’s car as he drove down Sierra College Boulevard, slowed down, and pointed his gun out the passenger side window, prosecutors have said. He shot and hit the victim in the thigh and back, and another dived out of the way. The shooting victim made a full recovery.

In a Roseville courtroom on Wednesday, Superior Court Judge Colleen Nichols commended Brace for taking responsibility for her role, saying a letter Brace wrote to the judge was “one of the best letters I’ve received from a defendant, because it was genuine and in your own words.”

In it, Brace discussed the “harm she has caused” to those around her and the remorse she feels, Prosecutor Garen Horst said.

“Frankly, I couldn’t have articulated it better,” Horst said.

Nichols told Brace that she “unfortunately, chose a path that was going sideways very quickly.”

As part of the plea agreement, Brace must testify at Wittkop’s trial and cooperate fully with police investigators. Horst said she has been doing that, though officials still have been unable to locate the gun that was used.