PARIS (AP) — The silent decorum of a march to honor an 85-year-old woman who survived Nazi horrors only to be stabbed to death last week in an alleged anti-Semitic attack was shattered Wednesday, with crowds shouting "Nazi! Nazi!" and other insults at France's far-right leader Marine Le Pen.

Mireille Knoll's death had taken on national importance, reminding France of both historic anti-Semitism and its resurgence in recent years.

Thousands of people — Jews, Muslims and politicians on the left and right — had joined in the evening march from the Place de la Bastille to Knoll's Paris apartment,...