McKINNEY -- A Plano man was sentenced to 20 years in prison for aggravated assault with a deadly weapon, but his weapon of choice wasn’t a knife or gun — it was his car.

On Feb. 6, 2015, police responded to 911 calls about a crash at the intersection of Independence Parkway and Parkhaven Drive. Witnesses at the scene said 32-year-old Christopher Ryan Wall’s black BMW was speeding southbound on Independence when it struck the front driver’s side of a Mazda turning onto Independence from Parkhaven.

The driver of the Mazda, Rita Deysarkar, was found unresponsive and in critical condition. She was rushed to Plano Medical Center and underwent emergency surgery for internal injuries. She remained in a coma for more than a month and is still suffering from her injuries, police say.

Wall, on the other hand, sustained only minor injuries. He was released from the hospital into police custody.

A Plano police officer interviewed Wall, who admitted he was coming from a local bar. Officers secured a search warrant for his blood, which showed an alcohol concentration of .110 — over the legal limit of 0.08 — nearly four hours after the crash.

According to Plano police, crash reconstruction experts determined Wall’s vehicle was traveling 114 mph at the time of impact. The speed limit on that stretch of road is 40 mph.

The experts further determined based on Wall’s speed, the terrain, and the lack of visibility, Deysarkar couldn’t have seen Wall’s vehicle in time to prevent the accident.

Wall pleaded guilty to aggravated assault with a deadly weapon, and Judge Benjamin Smith sentenced him to 20 years in prison.