P.M. Headlines

(Chicago Tribune): "Boston Marathon bombings: 3 charged with hiding backpack, fireworks belonging to suspect"

(CNN): "Government source: Bells should have gone off for student in custody in Boston case"

(Huffington Post): "Pat Toomey: Background checks died because GOP didn't want to help Obama"

(New York Times): "Failure of gun bill casts shadow on immigration reform"

(National Review): "Cruz in 2016"