The Baltimore police department is set on Thursday to submit a report on the death of Freddie Gray to the chief prosecutor, who is also tasked to decide on whether the officers involved in the controversial arrest should be charged or not.

State attorney Marilyn Mosby's office will use the said report in its own probe into Gray's death, after it was known that he was injured on April 12 around the time he was arrested for carrying a knife. His death has caused a national uproar over white U.S. law officers' treatment of minorities such as the African-Americans, according to Reuters.

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In the wake of Gray's death, Baltimore residents staged protests and riots which spread to bigger cities on Wednesday. The violence was reminiscent of last year's string of demonstrations spurred by the death of unarmed black citizens in the hands of police officers in Ferguson, New York, Missouri, and other places.

Mosby, 35, is an African-American who took her seat as state atorneyt at the beginning of the year. She revealed that her office has launched its own investigation into the Freddie Gray issue, so they are asking the public to calmly and patiently wait for the justice system to finish the probe.

So far, trying to find out what really happened to Gray has become Mosby's biggest test in her career as state attorney.

During her campaign, Mosby promised to make repeat offenders pay for their crimes. She also stressed the importance of neighborhood safety, citing the death of a cousin on his doorstep because of just a pair of shoes.

Although it is yet to be confirmed if the police report will be made public or not, media reports emerged on Thursday about fresh speculations on what really happened during Gray's arrest. Washington Post cites a police file which suggested that the suspect tried to hurt himself when he was inside the police van.

The newspaper obtained a file written by a police investigator which says a prisoner in the same van heard Gray seemingly banging his head against the vehicle's wall. The prisoner, however, was unable to see Gray because of a metal divider between them.

In addition, local TV station WJLA said the reason for Gray's attempt to hurt himself in the van is still unknown. However, the report said that the police officers violated their department's policy by failing to put restraints on Gray during the ride.

On Thursday, police said they learned that the van made a fourth stop which was previously undisclosed. The stop was revealed by a footage taken by a private camera.

Meanwhile, community activists said turning over the report on Freddie Gray's arrest and death to the prosecutors would help diminish tensions in Baltimore significantly.

TagsBaltimore, Baltimore riots, Freddie Gray, Marilyn Mosby