ALLIANCE, Ohio — A 14-year-old boy is accused of staging a suicide with his mother’s help after accidentally shooting and killing a 15-year-old girl. The shooting happened last Friday afternoon at a home on W. Summit Street in Alliance. Today, the boy and his mother appeared in separate courtrooms. The mother, 48-year-old Erin Barker, appeared in Alliance Municipal Court by video from the Stark County jail. Barker is charged with tampering with evidence, a third-degree felony, court records show.