William Porter, one of six Baltimore city police officers charged in connection to the death of Freddie Gray earlier in the year, walks to a courthouse for jury selection in his trial on November 30, 2015 in Baltimore, Maryland. (Photo by Rob Carr/Getty Images)

William Porter, one of six Baltimore city police officers charged in connection to the death of Freddie Gray earlier in the year, walks to a courthouse for jury selection in his trial on November 30, 2015 in Baltimore, Maryland. (Photo by Rob Carr/Getty Images)

The jury was unable to reach a verdict in the trial of Baltimore Police Officer William Porter over four charges connected to the death of Freddie Gray.

Judge Barry Williams declared a mistrial after three days of deliberation. Prosecutors can retry Porter.

According to NBC 4:

Porter was charged with manslaughter, second-degree assault, reckless endangerment and misconduct in office in the April 19 death of Gray, who died a week after his neck was broken during a ride in the back of a police van.

Prosecutors claimed Porter was criminally negligent for ignoring a policy requiring officers to strap prisoners in with a seat belt, and for not calling an ambulance immediately after Gray indicated he needed medical aid.

The wagon “became his casket on wheels,” prosecutor Janice Bledsoe said during her closing argument. Porter “just didn’t care enough,” she said.

The defense said the prosecution’s case was based on speculation and called Gray’s death a “horrific tragedy.”

“There is literally no evidence” that Porter’s actions in any way caused it, the defense argued.

Baltimore Mayor Stephanie Rawlings-Blake said in a statement that, “In the coming days, if some choose to demonstrate peacefully to express their opinion, that is their constitutional right. I urge everyone to remember that collectively, our reaction needs to be one of respect for our neighborhoods, and for the residents and businesses of our city. In the case of any disturbance in the city, we are prepared to respond.”

Porter is the first of six officers to see the inside of a court room for his alleged role in 25-year-old Gray’s death. Gray suffered a fatal spine injury after he was taken into police custody and died a week later.

His death sparked a week of peaceful protests in Baltimore, followed by riots that resulted in Governor Larry Hogan declaring a state of emergency and calling in the National Guard.

Filed Under: baltimore, BPD, freddie gray, meanwhile in maryland, police, Stephanie Rawlings-Blake, William Porter,