Civil unrest spreads across Baltimore after 25-year-old Freddie Gray dies in police custody. Meanwhile, a detective makes a troubling discovery when he arrests a major heroin dealer. It’s time to call in the FBI. Presenter: Jessica LussenhopProducer: Ben Crighton A podcast from Orbit Media reported and produced by the BBC and hosted by Jessica Lussenhop.See omnystudio.com/listener for privacy information.