LOS ANGELES—The police officer who inadvertently shot a 14-year-old girl to death while confronting a suspect at a Burlington store in North Hollywood had recently completed a course on how to handle an active shooter situation and was properly following his training, the officer’s union told City News Service on Jan. 2. Officer William Jones, 42, has been placed on administrative leave while authorities investigate the shooting, which occurred two days before Christmas as police responded to reports of a suspect randomly attacking customers in the store at 12121 Victory Blvd. Police fatally shot 24-year-old Daniel Elena Lopez in the incident, while a bullet fired by Jones pierced a wall and killed young Valentina Orellana-Peralta as she took shelter in a fitting room with her mother. Jones, a 10-year Los Angles Police Department veteran who worked as a community relations officer and also helped at a nonprofit that mentored at-risk …