BALTIMORE, MD - The U.S. Department of Justice will not bring charges against the six Baltimore police officers involved in the detainment of Freddie Gray.

Gray, 25, was arrested in April 2015 after making eye contact with a lieutenant and running in an area of Baltimore known for drug activity. He died a week later from what prosecutors alleged were spinal injuries in police custody. Justice officials said Tuesday that there was insufficient evidence to prove beyond a reasonable doubt that the constitutional rights of Gray, specifically his right against unreasonable search, had been willfully violated. (Get news alerts from Baltimore Patch, and like us on Facebook. Also, download the free Patch iPhone app.)

Hours after Gray's funeral in late April 2015, parts of the city erupted into riots, requiring the National Guard to help quell the violence. In the aftermath of the riots, State's Attorney Marilyn Mosby announced charges against six officers in connection with Gray's death. The charges ranged from misconduct to murder.

Criminal proceedings in Baltimore City concluded last year. Three officers were acquitted in 2016 in connection with Gray's death — Officer Edward Nero, Lt. Brian Rice and Officer Caesar Goodson — before prosecutors cleared the three remaining officers indicted in the case: Sgt. Alicia White, Officer William Porter and Officer Garrett Miller.

The Department of Justice conducted a probe into the Baltimore Police Department's patterns and practices, which resulted in a consent decree requiring the city to make changes to its policing to ensure the protection of people's civil rights.

Despite the closure of the Gray cases in the circuit court and justice department, five officers still face administrative hearings within the Baltimore Police Department this fall. All of the officers except Porter will be appearing before trial review boards in the coming months to determine the merit of charges recommended by police in an outside review, according to The Baltimore Sun.