Hello and welcome to bbc news. 1a people are going on trial in paris today, in connection with attacks in 2015 on the satirical weekly, Charlie Hebdo, and a jewish supermarket. 17 people were killed in three days of violence around paris, carried out by brothers, cherif and said kouachi, and ahmedy coulibaly. The attacks sparked large protests in defence of freedom of speech across france. Our paris correspondent, hugh schofield, has this report. Five years ago, this picture is brought france face to face with a new kind of horror. Shouting, we have avenged the profit, the brothers emerged from the office of Charlie Hebdo where they have just killed 11 people. In the getaway, they kill a 12, a policeman. It is the start of a frantic two days where the two are cornered at a print works north of paris and shot at. In the meantime, there has been another islamist attack. This timea another islamist attack. This time ajewish another islamist attack. This time a jewish supermarket with four