Chicago Justice season 1 episode 10
Episode title: Drill
After an innocent girl is killed in a gang-related shooting that was instigated on social media, Stone's obsession for justice endangers the family of a cooperating witness. To salvage his crumbling case, Stone must go head-to-head in the courtroom against both the social media providers who inadvertently fueled the gang war and a cocky young man who may have pulled the trigger.
