Gray, 25, died a week after sustaining a spinal injury while in the back of a police van in April 2015. Garrett Miller, William Porter and Alicia White were due to face charges including assault, misconduct in office and reckless endangerment. The move means there will be no convictions in the case. A post-mortem report found that Gray sustained his injury by slamming into a van wall during the ride. He was handcuffed but not restrained with a seatbelt. His death sparked civil unrest in Baltimore, and became part of a wider national debate on police brutality and the death of unarmed black men at the hands of police.
