Andrew Vargas, 22, a Hayward man, has pleaded guilty to felony DUI charges.
Vargas was driving his truck in San Francisco and struck Ryan White, 9, as he was leaving a baseball game at nearby AT&T Park on the night of August 4, 2011.
Vargas also struck a woman, causing minor injuries, as well as two parked cars before fleeing to his apartment where he tried to flee again when he saw the police waiting outside.
Vargas was arrested and found to have a bottle of Jagermeister liquor in the vehicle.
He initially pleaded not guilty to felony DUI causing injury and hit-and-run charges, but agreed to plead guilty today in exchange for serving one year in jail and having the hit-and-run charges dismissed as part of a plea agreement which also includes a restitution payment, amount to be determined, serve five years probation, complete a nine month school for DUI offenders, and pay various fines and fees.
Ryan had suffered a traumatic brain injury, as well as fractures to his pelvis, left leg and ankle and a laceration to his liver.
The case will return to court March 21 to set a sentencing date.
Driving under the influence is a serious charge and can result in some serious penalties especially if injury, death, hit and run are involved.