National Guard intervenes, curfew implemented

A+protester+rides+his+bike+in+front+of+a+police+line+at+North+and+Pennsylvania+Avenues+on+Monday%2C+April+27%2C+2015%2C+in+Baltimore.+%28Algerina+Perna%2FBaltimore+Sun%2FTNS%29

Photo courtesy Algerina Perna, Baltimore Sun

A protester rides his bike in front of a police line at North and Pennsylvania Avenues on Monday, April 27, 2015, in Baltimore. (Algerina Perna/Baltimore Sun/TNS)

Claire Grunewald, Lifestyles Editor