This courtroom sketch shows French satirical weekly newspaper Charlie Hebdo's publication director, cartoonist and writer Laurent Sourisseau, right, known as Riss, giving testimony next to Charlie Hebdo's lawyer Richard Malka at a courthouse in Paris, on September 9, 2020, during the trial of 14 people suspected of being accomplices in the Charlie Hebdo killings of January 2015. (AFP/Benoit Peyrucq)

As police investigate fresh attack amid Charlie Hebdo trial, French media unify around free expression