Officer Edward Nero with Baltimore Police has been found not guilty by a judge for the death of Freddie Gray.
The 30-year-old was charged after he failed to secure the 25-year-old black detainee during riots and protests spurred by the Black Lives Matter movement in April 2015.
There were also more riots after his arrest and death a week later.
Nero was facing assault, reckless endangerment with two counts of misconduct in office and is the second officer to be tried in the death of Gray. There are a total of six officers who are charged in connection to the incident. The trial of the first officer took place back in December.
Nero was charged after arresting Gray without justification and failing to secure him in a police cruiser. Freddie Gray died from a spine injury he suffered on scene.