Brazilian prosecutors file homicide charges against 21 people employed by the companies Samarco, Vale, and BHP Billiton for the November 2015 iron ore mine dam burst in the state of Minas Gerais that killed 19 people and polluted waterways. (BBC)
Following his October 5 arrest, U.S. federal prosecutors in Baltimore charge Harold T. Martin III, a former National Security Agency contractor, for violating the Espionage Act, specifically, with felony theft of government property. Prosecutors state that, over a 20-year time period, Martin stole at least 50 terabytes of data and "six full bankers boxes" of classified and other documents. The prosecutors state that Martin had an “arsenal” of weapons in his home. (The Washington Post)