Boston Bike Activist Louisa Gag Hit By Truck, Killed While Cycling To Work At City Hall, Mayor "Devastated"

CBS Boston

July 13, 2026

Louisa Gag, a Boston bike activist who was dedicated to making streets safer for cyclists and pedestrians, was killed in a crash in Roxbury Thursday.

Gag was riding her bike on Tremont Street near Roxbury Crossing when she was hit by a truck just after 8:15 a.m.

Gag was riding her bike on Tremont Street near Roxbury Crossing when she was hit by a truck just after 8:15 a.m. The driver stopped. The Massachusetts Vision Zero Coalition, which works to reduce traffic deaths in the state, said Gag was on her way to work at City Hall at the time. She died at the scene. She was 36 years old.

Gag began working for Mayor Michelle Wu's office as a policy fellow before becoming a transportation planner for the city of Boston. She dedicated her career to ensuring that the city was safer and more accessible, according to the mayor. Gag had previously worked at Livable Streets Alliance, a nonprofit transportation advocacy group in Cambridge.

Louisa Gag/Massachusetts Vision Zero Coalition/CBS Boston

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