Peace activist Juergen Graesslin holds a placard that reads "Killing", part of the slogan "Killing with Heckler & Koch arms in Mexico, Make the victims voice heard" during a silent vigil in front of the district court prior to the trial of employees of German weapons manufacturer Heckler & Koch, being accused of illegally trafficking arms to Mexican federal states in Stuttgart, Germany, February 21, 2019. REUTERS/Ralph Orlowski