Family members have identified the victim of Thursday morning's homicide crash near Roxbury Crossing as Louisa Gag, a longtime street safety advocate and transportation planner at Boston's City Hall. 5:51 AM EDT on July 10, 2026 Louisa Gag at a 2018 LivableStreets Alliance event. Courtesy of the LivableStreets Alliance. Read More: Front page | Violent crime | Vision Zero Streetsblog has migrated to a new comment system. New commenters can register directly in the comments section of any article.