ROCHESTER, Ind. (AP) – Jury selection is complete in the trial of an Indiana woman accused of killing three children by striking them with a pickup truck as they crossed a two-lane state highway to board a school bus.

Alyssa Shepherd faces three counts of reckless homicide and other charges in the Oct. 30, 2018, crash. She has pleaded not guilty .

Testimony is expected to begin on Wednesday in the 24-year-old woman’s trial in Fulton County.

Six-year-old twin brothers Xzavier and Mason Ingle, and their 9-year-old sister, Alivia Stahl, were killed and a fourth child was badly injured in the crash in Rochester.

Shepherd told authorities that she didn’t realize she was approaching a stopped school bus, despite the activated stop arm and flashing lights.