Five of the six officers involved in the arrest of Freddie Gray have provided statements to Baltimore police, leaving Mayor Stephanie Rawlings-Blake frustrated that one has not. "We know there are questions that people still have," said Kevin Harris, a spokesman for the mayor. "We know the best people to answer those questions are the people who are there. We want everyone involved with Mr. Gray to cooperate."

Rawlings-Blake aired her feelings about what she saw as a delay in the investigation Tuesday during an interview that was televised nationally. That annoyed the Baltimore police union, which criticized the mayor for what members said was misleading rhetoric about rules governing officer discipline. Rawlings-Blake has said in interviews that investigators have not "fully engaged" all the police officers involved in the arrest of Gray, who died Sunday while in police custody. She blamed the state Law Enforcement Officers' Bill of Rights for the delay.