Prosecutors charged Jessica Castro, 18, on suspicion of misdemeanor vehicular manslaughter for striking a woman with her car and killing her nine months ago.
Barbara M. Whittaker, 68, died after being struck Dec. 19 at the intersection of Ustick Road and Constantine Street while in the crosswalk. She died in the hospital due to blunt force trauma about a week after the collision.
Boise Police said Wednesday in a news release that the investigation took about nine months.
Castro was issued a summons on Aug. 8, and her next court appearance is set for 2:30 p.m. Sept. 20. She was not booked into jail.