Protests have erupted across France after authorities revealed that a man accused of kidnapping Lyhanna Rameau Bernard, a French schoolgirl found dead this month, had previously been flagged to law enforcement.

© Lionel Bonaventure/Agence France-Presse — Getty Images

A gunman believed he was defending the crowd, then killed an innocent protester. The legal case is complicated.

© Kim Raff for The New York Times