One police officer was killed and two others were critically injured in a violent shooting that also left the suspect dead in Fargo, North Dakota, authorities said.
A 15-year-old girl from Guatemala, whose identity has not been disclosed by the authorities, succumbed to a severe, pre-existing illness on Monday while under the government's protection.
The tests, which took place over 12 weeks with some of the world's leading banks, including Citigroup Inc. and Wells Fargo & Co., sought to evaluate the potential of digital currencies to enhance both domestic and international payment systems.