Mosby called for system reform after the failure to find any criminal involvement in Gray's death. "We know that Freddie Gray did not kill himself," she contended.

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"I would much rather prefer a judge render a not guilty verdict than to drop charges, because at some point cops have to fully go through the system and not get off in a partial way."

Officer Goodson -- who faces second-degree depraved heart murder as well as manslaughter, assault, misconduct in office and reckless endangerment charges -- was responsible for getting him to a hospital, Porter said.

Prosecution and defense teams appealed to Maryland's highest court in the Freddie Gray Case. They are arguing about whether Officer William Porter must testify against fellow officers in the case.

An appeals court has paused the trial to finish deciding on whether another one of the five other officers that was involved with Gray's death will have to testify.

Jury selection in Baltimore police officer Caesar Goodson's trial is set to begin on Monday in the Freddie Gray case.

Friday, Maryland State’s Attorney Marilyn Mosby announced charges of involuntary manslaughter, assault, failure to render aid and misconduct in office would be filed against six…