In Washington, D.C., a federal court jury deadlocked Thursday over whether to convict former Blackwater contractor Nicholas Slatten on murder charges for his role in the 2007 Nisoor Square massacre in central Baghdad, where Blackwater contractors killed 17 civilians after opening fire with machine guns and grenades on a crowded public space. The attack has been called the “My Lai massacre of Iraq.” In 2014, Slatten was convicted on murder charges over the massacre and sentenced to life in prison. But an appeals court voided that conviction and ordered a new trial for Slatten, which ended in Thursday’s hung jury.