Mosby entered the national spotlight on Friday after she announced charges against six Baltimore cops involved in Gray's April 12 arrest. Many believe that Gray, who died on April 19, was the victim of police brutality or negligence.
"[The criminal justice system] has historically and disproportionately affected so many communities of color, and what we're seeing right now when we turn on the news and we open up the newspaper is that frustration," Mosby told the Multicultural Prayer Movement group during a brief speech Tuesday morning.
The night before saw widespread rioting, looting and arson in Baltimore sparked by outrage over Gray's death.