The scooter rider who fatally struck "Gone Girl" actress Lisa Banes in a hit-and-run accident will do hard time ... a judge just sentenced him to at least a year behind bars.
Lisa's killer, 27-year-old Brian Boyd, was sentenced Wednesday to 1 to 3 years in prison in New York County Supreme Court.
Boyd had been awaiting sentencing since September, when he pleaded guilty to manslaughter and leaving the scene of an incident resulting in death without reporting it to authorities. Prosecutors were seeking a 3 to 9-year sentence.
Manhattan District Attorney Alvin Bragg tells TMZ ... "Lisa Banes was a beloved friend, family and community member whose life was tragically cut short. New York City continues to mourn her loss with them and it is my sincere hope that her loved ones are able to heal and recover."