A Baltimore firefighter rushes a ladder into place to attack a fire set by rioters in a convenience store and residence on East Biddle Street and Montford Avenue during rioting in Baltimore

A Baltimore firefighter rushes a ladder into place to attack a fire set by rioters in a convenience store and residence on East Biddle Street and Montford Avenue during rioting in Baltimore

A Baltimore firefighter rushes a ladder into place to attack a fire set by rioters in a convenience store and residence on East Biddle Street and Montford Avenue during rioting in Baltimore, Maryland in the early morning hours of April 28, 2015. Baltimore erupted in violence as hundreds of rioters looted stores, burned buildings and injured at least 15 police officers following the funeral of Freddie Gray, a 25-year-old black man who died after he was injured in police custody. REUTERS/Jim Bourg